Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh dung » thanh duong, thanh tung, thanh hung
hanh dung » anh dung, hanh dong, manh dung
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
than cao » toan cao, thai cao, than cap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu tinh - ((hanh dung) OR (thanh dung)) cua cong ((cong ban) OR (cong tan)) than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu tinh - ((hanh dung) or (thanh dung)) cua cong ((cong ban) OR (cong tan)) than cao~".
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - ((hanh dung) or (thanh dung)) cua cong ((cong ban) OR (cong tan)) than cao*.