Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
khang cong » hang cong, thanh cong, dang cong
hoc chieu » hoc thieu, ho chieu, hoc dieu
van khang » van khanh, van thanh, van quang
san quang » van quang, dan quang, san quan
quang tri » quan tri
tran van » luan van
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (hoc hien)) sang - thanh tran van khang cong san quang tri~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sang - thanh tran van khang cong san quang tri.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc hien)) sang - thanh tran van khang cong san quang tri*.