Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
cong thang » cong thanh, cang thang, cong thong
canh tran » canh tranh, hanh trang, banh trang
van nhung » van nhuong, va nhung, van hung
cong than » cong thanh, cong tan, cong thai
tran van » luan van
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (chieu xanh)) - canh tran van nhung ((cong than) OR (cong thang)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - canh tran van nhung ((cong than) OR (cong thang)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu xanh)) - canh tran van nhung ((cong than) OR (cong thang)) phan dau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu xanh)) - canh tran van nhung ((cong than) OR (cong thang)) phan dau*.