Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
anh quang » anh xquang, anh quan, nhanh quang
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
anh bang » anh hoang, tinh bang, anh dong
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: ((ho chieu) or (theo chu)) xanh - ((anh bang) OR (anh quang)) cua nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) xanh - ((anh bang) OR (anh quang)) cua nhung cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chu)) xanh - ((anh bang) OR (anh quang)) cua nhung cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) xanh - ((anh bang) OR (anh quang)) cua nhung cong tac toan cau*.