When using GAIS to search, language is very important. Not only can you use the "key words" approach that everyone is familiar with, but also Boolean searches and multi-parameter searches with which you can limit or expand the scope of a search.
GAIS（蓋世）的查詢語言較重要的，除了大家都知道的設定關鍵字外，還包括「布林運算式」、「多項目查詢」以供縮小或擴大查詢範圍。