Perhaps you should try some spelling variations:
khien bang » phien ban, khien dong
lieu nang » lieu nano, lieu giang, lieu cong
va truong » van truong, va thuong, va tuong
xa truong » cac truong
anh tang » anh bang, anh dang, anh nang
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((khien bang) or (lieu nang)) - anh tang ((va truong) OR (xa truong)) cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((khien bang) OR (lieu nang)) - anh tang ((va truong) OR (xa truong)) cong san toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((khien bang) or (lieu nang)) - anh tang ((va truong) OR (xa truong)) cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((khien bang) or (lieu nang)) - anh tang ((va truong) OR (xa truong)) cong san toan cau*.