Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhieu tang » chieu sang, nhiet nang
nhung nong » nhung cong, nhung bong, nhung chong
hieu lang » chieu sang, hieu quang, hieu van
tranh cua » doanh cua, manh cua
cua nhung » va nhung
ban thanh » ban hang
ban hanh » 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: doi ((hieu lang) or (nhieu tang)) - hanh tranh cua nhung nong ((ban thanh) OR (ban hanh)) hai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (nhieu tang)) - hanh tranh cua nhung nong ((ban thanh) OR (ban hanh)) hai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu lang) or (nhieu tang)) - hanh tranh cua nhung nong ((ban thanh) OR (ban hanh)) hai".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (nhieu tang)) - hanh tranh cua nhung nong ((ban thanh) OR (ban hanh)) hai*.