Perhaps you should try some spelling variations:
hanh dung » thanh dung, anh dung, hanh dong
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban
chu han » chu van

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: theo ((thuc hanh) OR (chu han)) - hanh dung luan hung cong manh toan ban~.
• Adding a wildcard symbol may retrieve word variants: theo ((thuc hanh) or (chu han)) - hanh dung luan hung cong manh toan ban*.