Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tran » thanh trang, thanh toan, thanh tra
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tram » hanh tam, hanh trang, thanh tra
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu manh) or (chieu tinh)) - ((hanh tram) or (thanh tran)) va nhung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu tinh)) - ((hanh tram) OR (thanh tran)) va nhung cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chieu tinh)) - ((hanh tram) or (thanh tran)) va nhung cong san toan cau*.