Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
nhanh lang » nhanh quang, nhanh thang, nhan dang
nhung song » nhung cong, nhung bong, nhung chong
phan cong » thanh cong
cua nhung » va nhung
song van » hoang van, trong van, duong van
van quan » van ban
quan tai » quan tri, quang tri, quan li

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

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