Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
nhanh sinh » nhan sinh, nhanh tinh, nhanh binh
cua nhung » va nhung
sinh cua » manh cua, dinh cuu, sinh va
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
gian man » gian dan, gian lan, gian van

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 sinh cua nhung ((cong dan) or (cong san)) gian man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chieu xanh)) - nhanh sinh cua nhung ((cong dan) OR (cong san)) gian man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) OR (chieu xanh)) - nhanh sinh cua nhung ((cong dan) or (cong san)) gian man".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) OR (chieu xanh)) - nhanh sinh cua nhung ((cong dan) or (cong san)) gian man*.