Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh dung » thanh dung, anh dung, hanh dong
dung cong » dung trong
chu xanh » chu manh, chua xang, chuc danh
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap
dung su » dung cu, dung du, dung so

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (((chieu xanh) OR (chieu sach)))) - hanh dung su dung cong tan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (((chieu xanh) OR (chieu sach)))) - hanh dung su dung cong tan than cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (((chieu xanh) OR (chieu sach)))) - hanh dung su dung cong tan than cau*.