Perhaps you should try some spelling variations:
hanh luan » khanh luan, hanh luat, han luan
hang luan » tang luan, dung luan
dung cong » dung trong
can tang » cao tang, can bang, ca tang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
cap can » cap han, cap van, tap can

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

• Performing a fuzzy search may retrieve terms with similar spellings: cap can tang - ((hanh luan) or (hang luan)) tin dung cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cap can tang - ((hanh luan) OR (hang luan)) tin dung cong dan than cau*.