Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhieu tang » chieu sang, hieu lang, nhiet nang
trung van » truong van, trong van, trung va
van dung » van dong, xay dung, tin dung
cong tap » cuong tap, cong tan, tong tap
cong tac » cong ty
toan cao » toan ban, toan tap

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: ho ((chieu tinh) OR (nhieu tang)) - thanh trung van dung ((cong tap) OR (cong tac)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (nhieu tang)) - thanh trung van dung ((cong tap) OR (cong tac)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (nhieu tang)) - thanh trung van dung ((cong tap) OR (cong tac)) toan cao*.