Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong vang » cong lang, cong quang, cong san
hoi hieu » hoi phieu, hoi tieu, moi hieu
cong van » cong san, song van, cong tan
phan cau » phan dau, phan cac, phan tu

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 - canh tranh cua nhung ((cong van) or (((cong vang) OR (cong ngang)))) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - canh tranh cua nhung ((cong van) OR (((cong vang) OR (cong ngang)))) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi hieu lang - canh tranh cua nhung ((cong van) or (((cong vang) OR (cong ngang)))) phan cau".
• Adding a wildcard symbol may retrieve word variants: hoi hieu lang - canh tranh cua nhung ((cong van) or (((cong vang) OR (cong ngang)))) phan cau*.