Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh chua » trinh chuan, trinh cua, trinh chu
hieu manh » chieu xanh, hieu nganh, dieu hanh
chua xang » chua nang, chuc nang, chu bang
xang cong » dang cong, bang cong, hang cong
hoc hieu » hoc thieu, hoc hien, doc hieu
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: hoc hieu manh - hanh trinh chua xang cong ((dan than) or (dan chan)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh trinh chua xang cong ((dan than) OR (dan chan)) cap.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trinh chua xang cong ((dan than) or (dan chan)) cap*.