3. The method of claim 1 , wherein the user input is partitioned into a plurality of partitioned words based on context, and the first set of query keywords includes the plurality of partitioned words.
3. The method of claim 1 , wherein the user input is partitioned into a plurality of partitioned words based on context, and the first set of query keywords includes the plurality of partitioned words. 4. The method of claim 3 , wherein the first set of query keywords includes at least one of the follow: one or more words that are adjacent to at least some of the plurality of partitioned words, one or more words that include at least a portion of the plurality of partitioned words, or one or more words that include at least a partitioned word in the plurality of partitioned words.