Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
cong thanh » dong thanh, cong trinh, cong tan
hanh dung » anh dung, hanh dong, manh dung
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
thanh hoa » thanh pho

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu sach)) - ((hanh dung) OR (thanh dung)) luan dong cong thanh hoa dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - ((hanh dung) OR (thanh dung)) luan dong cong thanh hoa dan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - ((hanh dung) OR (thanh dung)) luan dong cong thanh hoa dan".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - ((hanh dung) OR (thanh dung)) luan dong cong thanh hoa dan*.