Perhaps you should try some spelling variations:
chung cong » nhung cong, chong cong, phung cong
kham chua » kham pha
chua xang » chua nang, chuc nang, chu bang
hang luan » tang luan, dung luan
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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: kham chua xang - anh ((nang suat) or (hang luan)) chung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: kham chua xang - anh ((nang suat) OR (hang luan)) chung cong dan toan ban*.