Perhaps you should try some spelling variations:
thanh tung » thanh cong
hanh dung » thanh dung, anh dung, hanh dong
luan hang » luan nang, luan han, luan hung
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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 (toc thieu)) sach - ((hanh dung) or (thanh tung)) luan hang cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (toc thieu)) sach - ((hanh dung) OR (thanh tung)) luan hang cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (toc thieu)) sach - ((hanh dung) or (thanh tung)) luan hang cong tac toan cao*.