Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
trong van » trong cac
ho chieu » theo chieu, doi chieu, mot chieu
van toan » van tuan, van tan, van thanh
toan tap » toan ban
cong va » dong va, cong ha, cong tac
va dung » van dung, va duong, vat dung

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 (hoc thieu)) tinh - thanh cong va dung trong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - thanh cong va dung trong van toan tap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - thanh cong va dung trong van toan tap*.