Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
minh tuan » anh tuan
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
hoi hieu » hoi phieu, hoi tieu, moi hieu
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu lang - ((minh tuan) or (canh tranh)) cua nhung cong ((manh toan) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - ((minh tuan) OR (canh tranh)) cua nhung cong ((manh toan) OR (van tuan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoi hieu lang - ((minh tuan) or (canh tranh)) cua nhung cong ((manh toan) or (van tuan)) cau*.