Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » hoc hien
dua nhung » cua nhung, du nhung, qua nhung
ho chieu » theo chieu, doi chieu, mot chieu
anh nang » ganh nang, anh bang, anh dang
nang dua » nang du, nang suat, nang quan
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((hoc thieu) OR (toc thieu))) OR (ho chieu)) tinh - anh nang dua nhung cong san toan ban~.
• Adding a wildcard symbol may retrieve word variants: ((((hoc thieu) or (toc thieu))) or (ho chieu)) tinh - anh nang dua nhung cong san toan ban*.