Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, kieu tinh
chau tinh » cuu tinh, ha tinh, cua tinh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan han » luan hoan, luan phan, luan van
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tinh) or (chau tinh)) - hanh tang luan han ((cong dan) OR (cong san)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (chau tinh)) - hanh tang luan han ((cong dan) OR (cong san)) than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) or (chau tinh)) - hanh tang luan han ((cong dan) OR (cong san)) than cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (chau tinh)) - hanh tang luan han ((cong dan) OR (cong san)) than cao*.