Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh chua » trinh chuan, trinh cua, trinh chu
doi chinh » do chinh, tai chinh, hoc chinh
chua nang » chuc nang, chua xang, kha nang
nang cong » nang song, dang cong, bang cong
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chinh sach - hanh trinh chua nang cong ((dan than) or (dan chan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chinh sach - hanh trinh chua nang cong ((dan than) OR (dan chan)) cao.
• Adding a wildcard symbol may retrieve word variants: doi chinh sach - hanh trinh chua nang cong ((dan than) or (dan chan)) cao*.