1. A method for supporting input of one or more search parameters of a search engine in an input field, comprising: receiving input of a text character string including one or more search parameters in the input field displayed on a display device, wherein said text character string represents a search condition; determining a selection type in response to a user selection of a part of the text character string; displaying on the display device one or more search options of the search parameters depending on the determined selection type; and in response to the user selection of a desired search option, transforming said text character string to include the desired search option selected and displaying the transformed text character string on the display device; wherein said search options include search field specification, wild card, fuzzy search, proximity search, range search, search term boosting, Boolean operator, grouping and field grouping.
1. A method for supporting input of one or more search parameters of a search engine in an input field, comprising: receiving input of a text character string including one or more search parameters in the input field displayed on a display device, wherein said text character string represents a search condition; determining a selection type in response to a user selection of a part of the text character string; displaying on the display device one or more search options of the search parameters depending on the determined selection type; and in response to the user selection of a desired search option, transforming said text character string to include the desired search option selected and displaying the transformed text character string on the display device; wherein said search options include search field specification, wild card, fuzzy search, proximity search, range search, search term boosting, Boolean operator, grouping and field grouping. 10. The method according to claim 1 , further comprising: obtaining an item ID of a sub item from a table in a case where the item selected on said interface includes the sub item; and presenting an item corresponding to the obtained item ID of said sub item.