Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
khien bang » phien ban, khien dong
lieu nang » lieu nano, lieu giang, lieu cong
va truong » van truong, xa truong, va thuong
anh tang » anh bang, anh dang, anh nang
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
tang va » trang va, tang van, thang va

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