Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
chu manh » ho manh, chu han, chu van
anh nang » ganh nang, anh bang, anh dang
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
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 manh) or (chuc nang)) - anh nang cua nhung cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu manh) OR (chuc nang)) - anh nang cua nhung cong tap toan ban*.