Perhaps you should try some spelling variations:
hiem ngan » kim ngan, viem gan
hanh tran » hanh trang, thanh tran, hanh tram
hung cong » nhung cong, hung cuong, phung cong
manh toan » thanh toan, anh tuan, tinh toan
hoc hiem » hoc hien, hoc thieu, hoc thiet
tran van » luan van
van hung » van dung, manh hung, van duong
dan toan » van toan, dan than, xuan toan

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 hung cong ((dan toan) OR (manh toan)) cao~".
• Adding a wildcard symbol may retrieve word variants: hoc hiem ngan - hanh tran van hung cong ((dan toan) OR (manh toan)) cao*.