Perhaps you should try some spelling variations:
nghiep nhung » nghiem hung, nghiep dung, nghiep nong
tran thanh » ban thanh, van thanh, quan thanh
hanh trinh » canh tranh, hanh chinh
than tran » thanh tran, thoan tran, tan tran
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan

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: than tran thanh - hanh trinh ((nghiep nhung) OR (thep khung)) cong ((dan toan) OR (manh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "than tran thanh - hanh trinh ((nghiep nhung) or (thep khung)) cong ((dan toan) OR (manh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: than tran thanh - hanh trinh ((nghiep nhung) or (thep khung)) cong ((dan toan) OR (manh toan)) cau*.