Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
vat dung » van dung, va dung, viet dung
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cao » chan cho, chat cao, chay cao

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: ((doi chieu) OR (theo chieu)) xanh - ((thanh trung) OR (thanh tung)) vat dung cong dan chan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (theo chieu)) xanh - ((thanh trung) OR (thanh tung)) vat dung cong dan chan cao~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) xanh - ((thanh trung) OR (thanh tung)) vat dung cong dan chan cao*.