Perhaps you should try some spelling variations:
chua tri » chu tri, chua trieu, chua tivi
chua tre » cua tre, chua trieu, cho tre
van tuan » van quan, van ban, anh tuan
hieu toi » hieu moi, hieu loi, hieu voi
toi pham » tac pham, vi pham, thi phap
ky dong » ly dong, ky dang, ky cong
duc van » duc va, duc tan, duc manh
tuan va » toan va, luan va, quan va
co sach » bo sach, cuon sach, hoc sach
so sach » so sanh, bo sach, hoc sach
co doi » cho doi, co dot, co dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) OR (co sach)) ky dong co doi. hieu toi pham duc van tuan va ((chua tre) or (chua tri))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (co sach)) ky dong co doi. hieu toi pham duc van tuan va ((chua tre) OR (chua tri)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (co sach)) ky dong co doi. hieu toi pham duc van tuan va ((chua tre) or (chua tri))".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (co sach)) ky dong co doi. hieu toi pham duc van tuan va ((chua tre) or (chua tri))*.