Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
hanh tran » hanh trang, thanh tran, hanh tram
van nhung » van nhuong, va nhung, van hung
tran van » luan van
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban

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 - hanh tran van nhung ((cong dan) or (cong tan)) ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh tran van nhung ((cong dan) OR (cong tan)) ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh tran van nhung ((cong dan) or (cong tan)) ((toan tap) or (toan ban))*.