Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
khanh cong » thanh cong, hanh cong, khach cong
hieu lang » chieu sang, hieu quang, nhieu tang
thanh tam » thanh tai, thanh tay, thanh nam
van khanh » van thanh, van hanh, van anh
mot hieu » mot chieu, moi hieu, mot chien
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot hieu lang - ((thanh toan) or (thanh tam)) van khanh cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot hieu lang - ((thanh toan) OR (thanh tam)) van khanh cong dan than cao*.