Perhaps you should try some spelling variations:
luan thong » luan phong, luan tuong, luat thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tang luan » dung luan
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, huong dan
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.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - anh tang luan thong ((cong dan) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - anh tang luan thong ((cong dan) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - anh tang luan thong ((cong dan) or (cong tac)) toan cau*.