Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo cau » theo chu, theo cap, theo dau
cau sach » cao sach, hau sach, rau sach
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran ban » tranh ban, tran van, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo cau sach - anh ((tang cua) or (mang cua)) nhung cong tac tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo cau sach - anh ((tang cua) OR (mang cua)) nhung cong tac tran ban.
• Adding a wildcard symbol may retrieve word variants: theo cau sach - anh ((tang cua) or (mang cua)) nhung cong tac tran ban*.