Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hung cong » nhung cong, hung cuong, phung cong
tran van » luan van
van hung » van dung, manh hung, van duong
cong san » cong tac
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu tinh)) - tan tran van hung cong san ((phan cau) OR (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu tinh)) - tan tran van hung cong san ((phan cau) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu tinh)) - tan tran van hung cong san ((phan cau) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu tinh)) - tan tran van hung cong san ((phan cau) OR (phan dau))*.