Perhaps you should try some spelling variations:
chau tinh » cuu tinh, cua tinh, cac tinh
hanh dung » thanh dung, anh dung, hanh dong
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
cong san » cong tac
toan cao » toan tap
toan ban » van ban
ha tinh » va tinh, may tinh

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 (ha tinh)) - hanh dung luan hung cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chau tinh) OR (ha tinh)) - hanh dung luan hung cong san ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chau tinh) OR (ha tinh)) - hanh dung luan hung cong san ((toan cao) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo ((chau tinh) OR (ha tinh)) - hanh dung luan hung cong san ((toan cao) or (toan ban))*.