Perhaps you should try some spelling variations:
tieu tinh » trieu tinh, tieu trinh, lieu tinh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan hang » luan nang, luan han, luan hung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cau » toan ban, toan tap, toan tai
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 tinh - hanh tang luan hang ((cong dan) or (cong tan)) ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - hanh tang luan hang ((cong dan) OR (cong tan)) ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - hanh tang luan hang ((cong dan) or (cong tan)) ((toan cau) or (toan cao))*.