Perhaps you should try some spelling variations:
luan chung » luan chinh
luat cong » thuat cong, luat chung, cua cong
chay kha » chai khoa, chat khoa, chay chua
kha nang » phap nang, ky nang, ki nang
anh tang » anh bang, anh dang, anh nang
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: chay kha nang - anh tang ((luat cong) or (luan chung)) cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chay kha nang - anh tang ((luat cong) OR (luan chung)) cong dan toan ban*.