Perhaps you should try some spelling variations:
chap thuong » chan thuong, phan thuong, pham thuong
thuong cong » thong cong, thuong con, thuong dong
thanh tung » thanh cong
hieu lang » chieu sang, hieu quang, nhieu tang
nho hieu » nha hieu, nho sieu, nhu hieu
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho hieu lang - ((thanh trung) or (thanh tung)) chap thuong cong tac ((toan cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - ((thanh trung) OR (thanh tung)) chap thuong cong tac ((toan cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - ((thanh trung) or (thanh tung)) chap thuong cong tac ((toan cau) or (phan cau))*.