Perhaps you should try some spelling variations:
cao thuong » cao truong, ca thuong, cho thuong
hieu lang » chieu sang, hieu quang, nhieu tang
thong ban » thong van, trong ban, thong bai
ban thanh » ban hanh, ban hang
thanh cau » thanh chau, thanh mau, nhanh cau
doi hieu » doi chieu, doc hieu, doi hien
cua tong » cua cong, cua dong, cua nong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - canh tranh ((cua tong) or (cao thuong)) thong ban thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - canh tranh ((cua tong) OR (cao thuong)) thong ban thanh cau.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - canh tranh ((cua tong) or (cao thuong)) thong ban thanh cau*.