Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
dang cong » dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
thanh va » hanh va, thanh ha, thanh ve
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (doi chi)) xanh - canh ((thanh va) or (thanh van)) dang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (doi chi)) xanh - canh ((thanh va) OR (thanh van)) dang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (doi chi)) xanh - canh ((thanh va) or (thanh van)) dang cong dan toan cau*.