Perhaps you should try some spelling variations:
luan nhung » luan chung, luan hung, quan nhung
chieu tinh » trieu tinh, lieu tinh, chau tinh
chuc danh » chuc nganh, thuc hanh, chuc nang
tang luan » dung luan
anh tang » anh bang, anh dang, anh nang
cong san » cong tac
cong tan » cong tac, cong thanh, cong ty
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chuc danh) or (chieu tinh)) - anh tang luan nhung ((cong san) or (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chieu tinh)) - anh tang luan nhung ((cong san) OR (cong tan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chieu tinh)) - anh tang luan nhung ((cong san) or (cong tan)) toan cau*.