Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chua nang » chuc nang, chua xang, kha nang
ganh nang » anh nang, nganh nong, van nang
cua nhung » va nhung
chu xanh » chu manh, chieu xanh, chua xang
nang cua » mang cua, hang cua, nang dua
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai 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: theo ((chu xanh) or (chua nang)) - ganh nang cua nhung cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chua nang)) - ganh nang cua nhung cong tap toan ban*.