Perhaps you should try some spelling variations:
chung cong » nhung cong, chong cong, phung cong
phuc nang » chuc nang, phuc hang, phuc nhung
tang luat » tang luan, nang suat, tong luan
hang luan » tang luan, dung luan
cong van » cong vang, cong san, song van
van tan » van tuan, van ban, van tai
tan ban » toan ban, tang 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: khac phuc nang - anh ((tang luat) or (hang luan)) chung cong van tan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: khac phuc nang - anh ((tang luat) OR (hang luan)) chung cong van tan ban*.