Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hieu lang » chieu sang, hieu quang, nhieu tang
hang luan » tang luan, dung luan
cua nhung » va nhung
luan cua » quan cua, lua cua, luat cua
ban than » ban thanh, van thanh, ban hang
dan chan » dan gian, dan ca, van chat

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (hieu lang)) - hang luan cua nhung cong ((ban than) OR (dan chan)) ban~.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (hieu lang)) - hang luan cua nhung cong ((ban than) or (dan chan)) ban*.