Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
quan trinh » qua trinh, quan tinh, xuan trinh
trinh cong » trinh dung
hieu lang » chieu sang, hieu quang, nhieu tang
san thang » van thang, san chang, san thanh
thang cau » hang cau, thong cau, thanh chau
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (hieu lang)) - ((thanh tung) or (thanh cong)) quan trinh cong san thang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (hieu lang)) - ((thanh tung) OR (thanh cong)) quan trinh cong san thang cau.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (hieu lang)) - ((thanh tung) or (thanh cong)) quan trinh cong san thang cau*.