Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh chua » trinh chuan, trinh cua, trinh chu
hiem ngan » kim ngan, viem gan
chua nang » chuc nang, chua xang, kha nang
nang cong » nang song, dang cong, bang cong
manh toan » thanh toan, tinh toan
hoc hiem » hoc hien, hoc thieu, hoc thiet

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hiem ngan - hanh trinh chua nang cong ((manh toan) OR (anh tuan)) cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hiem ngan - hanh trinh chua nang cong ((manh toan) or (anh tuan)) cau*.