Perhaps you should try some spelling variations:
nhiem trong » nghiep trong
chon nhiem » chon chien, hoi nhiem, phoi nhiem
hanh trang » thanh trung, canh tranh, hanh trinh
trang va » tran van, hang va
cong tan » cong thanh, cong ty, cong ha
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap

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: chon nhiem trong - hanh trang va nhung ((((cong tan) OR (cong tac))) OR (cong san)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chon nhiem trong - hanh trang va nhung ((((cong tan) OR (cong tac))) or (cong san)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: chon nhiem trong - hanh trang va nhung ((((cong tan) OR (cong tac))) or (cong san)) toan cau*.