Perhaps you should try some spelling variations:
hiem ngan » kim ngan, viem gan
hanh tran » hanh trang, thanh tran, hanh tram
van nhung » van nhuong, va nhung, van hung
hoc hiem » hoc hien, hoc thieu, hoc thiet
tran van » luan van
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan tap » toan ban

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hiem ngan - hanh tran van nhung ((cong dan) OR (cong san)) toan tap~".
• Adding a wildcard symbol may retrieve word variants: hoc hiem ngan - hanh tran van nhung ((cong dan) OR (cong san)) toan tap*.