Perhaps you should try some spelling variations:
tieu xanh » chieu xanh, dieu hanh, tien anh
tieu danh » dieu danh, tiep danh, thien danh
ganh nang » anh nang, nganh nong, van nang
dung cong » dung trong
anh tang » anh bang, anh dang, anh nang
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban
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 ((tieu xanh) OR (tieu danh)) - ((anh tang) or (ganh nang)) va dung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (tieu danh)) - ((anh tang) OR (ganh nang)) va dung cong san toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) OR (tieu danh)) - ((anh tang) or (ganh nang)) va dung cong san toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) OR (tieu danh)) - ((anh tang) or (ganh nang)) va dung cong san toan ban*.