Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, hoc hien, hoc dieu
doan quan » doan quang, toan quan, doan tuan
ho chieu » theo chieu, hoc thieu, doi chieu
dan quan » van quan, ban quan, dan luan
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » 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: ((hoc chieu) or (ho chieu)) sang - canh ((doan quan) or (dan quan)) nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) sang - canh ((doan quan) OR (dan quan)) nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (ho chieu)) sang - canh ((doan quan) or (dan quan)) nhung cong tac toan cau*.