Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thanh tung » thanh cong
van toan » van tuan, van thanh, manh toan
cho chu » cho thue
tung ap » tang ap, tung dan, tung bay
ap dung » xay dung, van dung
van tan » van tuan, van ban, van tai

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

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