Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh dung » thanh dung, anh dung, hanh dong
luan nang » luan van, van nang, luan san
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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 ((chau tinh) or (lieu tinh)) - hanh dung luan nang ((cong dan) or (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chau tinh) OR (lieu tinh)) - hanh dung luan nang ((cong dan) OR (cong tan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chau tinh) or (lieu tinh)) - hanh dung luan nang ((cong dan) or (cong tan)) toan cau*.