Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhieu tang » chieu sang, hieu lang, nhiet nang
hanh trinh » hanh chinh
nhung cong » dung cong, thong cong, hang cong
van nhung » van nhuong, va nhung, van hung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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 ((chiet tach) OR (nhieu tang)) - ((hanh trinh) OR (canh tranh)) van nhung cong tan toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chiet tach) or (nhieu tang)) - ((hanh trinh) OR (canh tranh)) van nhung cong tan toan tap~".
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) or (nhieu tang)) - ((hanh trinh) OR (canh tranh)) van nhung cong tan toan tap*.