Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
canh doan » canh dan, hanh doanh, chan doan
va duong » van duong, va tuong, va huong
cong van » cong vang, song van, cong tan
cong san » cong tac
phan dau » phan tu, hang dau
va dung » van dung, 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: theo chieu sang - canh doan ((va dung) OR (va duong)) ((cong van) or (cong san)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - canh doan ((va dung) OR (va duong)) ((cong van) OR (cong san)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sang - canh doan ((va dung) OR (va duong)) ((cong van) or (cong san)) phan dau".
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - canh doan ((va dung) OR (va duong)) ((cong van) or (cong san)) phan dau*.