Perhaps you should try some spelling variations:
thanh trung » thanh tung
thanh thang » nhanh thang, thanh thanh, thanh hang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
vat dung » van dung, va dung, viet dung
cong san » cong tac
san toan » van toan, dan toan, manh toan
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 - ((thanh trung) or (thanh thang)) vat dung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) xanh - ((thanh trung) OR (thanh thang)) vat dung cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) xanh - ((thanh trung) or (thanh thang)) vat dung cong san toan ban*.