Perhaps you should try some spelling variations:
hanh hang » thanh hang, hang hang, hanh han
hang luan » tang luan, dung luan
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
chu tinh » chau tinh, chua tinh, cuu tinh
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
hoi chu » hoi chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi chu tinh - hanh hang luan hung cong san ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chu tinh - hanh hang luan hung cong san ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoi chu tinh - hanh hang luan hung cong san ((toan cau) or (toan ban))*.