Perhaps you should try some spelling variations:
khang cong » hang cong, thanh cong, dang cong
hanh tran » hanh trang, thanh tran, hanh tram
van khang » van khanh, van thanh, van quang
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
tran van » luan van
cong san » cong tac
tang ban » tang bang, tiang ban, tang van
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doc hieu)) xanh - hanh tran van khang cong san ((tang ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) xanh - hanh tran van khang cong san ((tang ban) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) xanh - hanh tran van khang cong san ((tang ban) or (toan ban))*.