Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
thanh tinh » thanh binh, nhanh tinh, than kinh
cua nhung » va nhung
tinh cua » trinh cua, sinh cua, tinh chat
cong tam » cong tac, cong tan, dong tam
cong nam » dong nam, uong nam, thong nam
toan tap » toan ban

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 sach) OR (chieu sang)) - thanh tinh cua nhung ((cong tam) or (cong nam)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu sang)) - thanh tinh cua nhung ((cong tam) OR (cong nam)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chieu sang)) - thanh tinh cua nhung ((cong tam) or (cong nam)) toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chieu sang)) - thanh tinh cua nhung ((cong tam) or (cong nam)) toan tap*.