Perhaps you should try some spelling variations:
mot chieu » doi chieu
hoc thieu » toc thieu, hoc hien
hanh dang » hanh dong, anh dang, hanh dung
nang cong » nang song, dang cong, bang cong
ho chieu » theo chieu, doi chieu, thi chieu
dang van » hoang van, hang va
van nang » van quang, van ban, van dong
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 (mot chieu))) or (hoc thieu)) tinh - hanh dang van nang cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (mot chieu))) OR (hoc thieu)) tinh - hanh dang van nang cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (mot chieu))) or (hoc thieu)) tinh - hanh dang van nang cong san toan ban*.