Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
van khang » van khanh, van thanh, van quang
nhu hieu » nhu hien, nha hieu, nho hieu
manh cua » doanh cua, ban cua
van hang » van hoang, van thang, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: nhu hieu lang - canh manh cua nhung cong ((van hang) or (van khang)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nhu hieu lang - canh manh cua nhung cong ((van hang) OR (van khang)) cau*.