Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu xanh » chieu sach, chieu sang
thanh tran » thanh trang, thanh toan, thanh tra
hieu manh » hieu nganh, dieu hanh, hien hanh
lang cong » dang cong, bang cong, hang cong
tran van » luan van
van lang » van nang, va lang, van hang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: hoc ((((hieu manh) OR (chieu xanh))) or (chieu tinh)) - thanh tran van lang cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hieu manh) OR (chieu xanh))) OR (chieu tinh)) - thanh tran van lang cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hieu manh) OR (chieu xanh))) or (chieu tinh)) - thanh tran van lang cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((((hieu manh) OR (chieu xanh))) or (chieu tinh)) - thanh tran van lang cong tac toan cao*.