Perhaps you should try some spelling variations:
hanh trong » hanh trang, anh trong, hinh trong
hieu lang » chieu sang, hieu quang, nhieu tang
trong van » trong cac
trong san » trong cac, dong san, trong ca
van dung » van dong, xay dung, tin dung
cong san » cong tac
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: ho ((chinh sach) or (hieu lang)) - hanh trong van dung ((trong san) OR (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (hieu lang)) - hanh trong van dung ((trong san) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chinh sach) or (hieu lang)) - hanh trong van dung ((trong san) OR (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (hieu lang)) - hanh trong van dung ((trong san) OR (cong san)) toan cau*.