15. A mobile terminal, comprising a memory, a display, and a processing apparatus, wherein the memory is configured to store a plurality of contact labels, each of the contact labels comprising at least two characters, and each of the at least two characters being represented by at least one grapheme; the display is configured to perform a listing of a first sequence of graphemes on the display; the processing apparatus is configured to: receive a first input; and perform a selection of a first grapheme from the first sequence of graphemes in response to the first input, the first sequence of graphemes being associated with a first unit of characters relating to the plurality of contact labels; the display is further configured to: perform a first display of a first set of contact labels being searched within the plurality of contact labels, if each of the first set of contact labels comprising a grapheme matching the first grapheme; perform a listing of a second sequence of graphemes on the display, wherein the first sequence of graphemes is listed at a first position of the display, the second sequence of graphemes is listed at a second position of the display, and the first sequence of graphemes is hidden when the second sequence of graphemes is listed; the processing apparatus is further configured to: receive a second input; perform a selection of a second grapheme from the second sequence of graphemes in response to the second input, the second sequence of graphemes being associated with a second unit of characters relating to the plurality of contact labels; and the display is further configured to: perform an updated display of the first display, the updated display relating to a second set of contact labels being searched within the first set of contact labels, if each of the second set of contact labels comprising a grapheme matching the second grapheme.
15. A mobile terminal, comprising a memory, a display, and a processing apparatus, wherein the memory is configured to store a plurality of contact labels, each of the contact labels comprising at least two characters, and each of the at least two characters being represented by at least one grapheme; the display is configured to perform a listing of a first sequence of graphemes on the display; the processing apparatus is configured to: receive a first input; and perform a selection of a first grapheme from the first sequence of graphemes in response to the first input, the first sequence of graphemes being associated with a first unit of characters relating to the plurality of contact labels; the display is further configured to: perform a first display of a first set of contact labels being searched within the plurality of contact labels, if each of the first set of contact labels comprising a grapheme matching the first grapheme; perform a listing of a second sequence of graphemes on the display, wherein the first sequence of graphemes is listed at a first position of the display, the second sequence of graphemes is listed at a second position of the display, and the first sequence of graphemes is hidden when the second sequence of graphemes is listed; the processing apparatus is further configured to: receive a second input; perform a selection of a second grapheme from the second sequence of graphemes in response to the second input, the second sequence of graphemes being associated with a second unit of characters relating to the plurality of contact labels; and the display is further configured to: perform an updated display of the first display, the updated display relating to a second set of contact labels being searched within the first set of contact labels, if each of the second set of contact labels comprising a grapheme matching the second grapheme. 26. The mobile terminal according to claim 15 , wherein the first sequence of graphemes comprises distinct graphemes; and the second sequence of graphemes comprises distinct graphemes.