Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chu xanh » chu manh, chua xang, chuc danh
anh dang » anh dong, anh dung, anh bang
cua tong » cua cong, cua dong, cua song
cua nong » cua cong, cuu nong, cua dong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: chao ((chu xanh) or (chieu xanh)) - anh dang ((cua tong) OR (cua nong)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chu xanh) OR (chieu xanh)) - anh dang ((cua tong) OR (cua nong)) cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu xanh) or (chieu xanh)) - anh dang ((cua tong) OR (cua nong)) cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: chao ((chu xanh) or (chieu xanh)) - anh dang ((cua tong) OR (cua nong)) cong tac toan cao*.