Perhaps you should try some spelling variations:
khau sach » hau sach, khoa sach, pham sach
truong va » truong dai, truong cao, truong dao
hang cong » dang cong, hang nong, bang cong
gian chau » gian cham, gian cua, gian cac
khi sach » khi sac, khoa sach, khoe sach
cong tac » cong ty
tac gian » tac gia, tac giai, tac giam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((khi sach) OR (khau sach)) - thanh ((trong cac) OR (truong va)) hang cong tac gian chau~.
• Adding a wildcard symbol may retrieve word variants: doi ((khi sach) or (khau sach)) - thanh ((trong cac) or (truong va)) hang cong tac gian chau*.