Perhaps you should try some spelling variations:
quan nhung » qua nhung, luan chung, quang hung
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - canh tranh ((quan nhung) or (cua nhung)) cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - canh tranh ((quan nhung) OR (cua nhung)) cong dan toan tap*.