Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doi chi, ho chieu, mot chieu
canh doan » canh dan, hanh doanh, chan doan
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

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) or (doc hieu)) xanh - canh doan va nhung cong dan ((phan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) xanh - canh doan va nhung cong dan ((phan cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doc hieu)) xanh - canh doan va nhung cong dan ((phan cau) or (phan dau))*.