Perhaps you should try some spelling variations:
nghiem thuoc » nghiem duoc, nghiem hoa, nghi thuc
thuoc cong » truoc cong, thuoc trong, thu cong
tinh hoc » sinh hoc, tin hoc, hinh hoc
cong cac » cuong cac, cong tac, cong cau
cac danh » cac doanh, cac dan, cac dang
danh hoa » thanh hoa, khanh hoa, nganh hoa
gian dan » gian lang
tu tinh » tru tinh, tu tin, thue tinh
hoi cac » hoc cac, voi cac, hoa cac
hoc xa » hoc ma

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu tinh hoc tap, nghiem thuoc cong cac danh hoa hoc xa ((hoi cac) or (loi cach)) gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu tinh hoc tap, nghiem thuoc cong cac danh hoa hoc xa ((hoi cac) OR (loi cach)) gian dan.
• Adding a wildcard symbol may retrieve word variants: tu tinh hoc tap, nghiem thuoc cong cac danh hoa hoc xa ((hoi cac) or (loi cach)) gian dan*.