Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » hanh trinh, hanh trang, lanh tranh
doc chieu » doc hieu, doi chieu, toc thieu
thanh hai » thanh phan, thanh hoa, thanh san
nong ban » nong dan, nong san, nong van
dong ban » dong bang, dong san, dong bac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu sang - ((hanh tranh) or (canh tranh)) va nhung ((nong ban) or (dong ban)) thanh hai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu sang - ((hanh tranh) OR (canh tranh)) va nhung ((nong ban) OR (dong ban)) thanh hai.
• Adding a wildcard symbol may retrieve word variants: doc chieu sang - ((hanh tranh) or (canh tranh)) va nhung ((nong ban) or (dong ban)) thanh hai*.