Perhaps you should try some spelling variations:
thanh tung » thanh cong
mot chieu » doi chieu, ho chieu
doc hieu » toc thieu, hoc thieu, hoc hien
van dung » van dong, xay dung, tin dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
va dung » va duong, vat dung, va ung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (doc hieu)) xanh - thanh tung ((va dung) OR (van dung)) cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doc hieu)) xanh - thanh tung ((va dung) OR (van dung)) cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (doc hieu)) xanh - thanh tung ((va dung) OR (van dung)) cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doc hieu)) xanh - thanh tung ((va dung) OR (van dung)) cong dan toan cao*.