Perhaps you should try some spelling variations:
van nhuong » van chuong, van phuong, van huong
van nhung » va nhung, van hung, van phung
hanh tran » hanh trang, thanh tran, hanh tram
chu xanh » chu manh, chieu xanh, chua xang
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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 ((chu xanh) OR (chu han)) - hanh tran ((van nhung) OR (van nhuong)) cong tac toan ban~.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu han)) - hanh tran ((van nhung) or (van nhuong)) cong tac toan ban*.