Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
khang cong » hang cong, thanh cong, dang cong
hoc chieu » hoc thieu, ho chieu, hoc dieu
van khang » van khanh, van thanh, van quang
toan van » tran van, toan ban, tan van
cong san » cong tac
san quan » van quan, ban quan, dan quan
quan tai » quan tri, quang tri, quan li

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 toan van khang cong san quan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sang - thanh toan van khang cong san quan tai.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc hien)) sang - thanh toan van khang cong san quan tai*.