Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
thanh tung » thanh cong
phap thong » phap phong, phap chong, pho thong
thong cong » trong cong, tong cong, thong thong
hoi nhieu » hoi hieu, hoi nhiem, hoi phieu
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: hoi nhieu tang - ((thanh trung) or (thanh tung)) phap thong cong tac ((toan cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi nhieu tang - ((thanh trung) OR (thanh tung)) phap thong cong tac ((toan cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: hoi nhieu tang - ((thanh trung) or (thanh tung)) phap thong cong tac ((toan cau) or (phan cau))*.