Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
chu xanh » chu manh, chieu xanh, chua xang
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan ban » van ban
chuc » thuc, chua, phuc

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (chuc nang)) - anh tang cua nhung cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chuc nang)) - anh tang cua nhung cong tap toan ban*.