Perhaps you should try some spelling variations:
nganh nong » nganh cong
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
anh quang » anh xquang, anh quan, nhanh quang
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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 xanh - ((anh quang) or (nganh nong)) va nhung cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((anh quang) OR (nganh nong)) va nhung cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((anh quang) or (nganh nong)) va nhung cong tac toan ban*.