Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
tranh cac » trinh cac, thanh cac, tranh cai
trung va » truong va, trang va, trung ha
cong tac » cong ty
toan cao » toan ban, toan tap
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu tinh)) - thanh trung va dung cong tac ((tranh cac) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu tinh)) - thanh trung va dung cong tac ((tranh cac) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu tinh)) - thanh trung va dung cong tac ((tranh cac) or (toan cao))*.