Perhaps you should try some spelling variations:
cach nang » cach mang, sach nang, cach nhanh
nang quan » ban quan, nang suat
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
cong pham » cong phan, chong phap, cong ha
doc hieu » hoc thieu, hoc hien
thanh ca » thanh cha, thanh cac, thanh ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) manh - cach nang quan dung cong pham thanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) manh - cach nang quan dung cong pham thanh ca.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (toc thieu)) manh - cach nang quan dung cong pham thanh ca*.