Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
trang va » tran van, hang va
cong dan » cong san, cong tan, huong dan
than cao » toan cao, thai cao, than cap
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - anh ((trang va) or (luan van)) nhung ((cong dan) or (cong thanh)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - anh ((trang va) OR (luan van)) nhung ((cong dan) OR (cong thanh)) than cao.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - anh ((trang va) or (luan van)) nhung ((cong dan) or (cong thanh)) than cao*.