Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
nhanh mang » nhanh lang, nhanh quang, nhanh thang
nhung cong » dung cong, thong cong, hang cong
hanh mang » hanh trang, nhanh lang, thanh hang
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than dau » phan dau, thau dau, han dau

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

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