Perhaps you should try some spelling variations:
thanh duong » thanh huong, thanh cuong, thanh vuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
hanh dung » thanh dung, hanh dong, manh dung
dung cong » dung trong
anh dung » anh dong, anh huong, sach dung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
va dung » van dung, va duong, vat dung

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