Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
danh lai » danh sai, gianh lai, dinh lam
lai cua » dai cua, hai cua, lai chau
va danh » va dinh, va dan, va hanh
sang ma » tang ma, nang ma, sang tao
ty sang » ty xang, ty hang, duy sang
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) OR (toc sach)) ty sang ma hoi. hieu ((ve cam) or (va cam)) duc va danh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ty sang ma hoi. hieu ((ve cam) OR (va cam)) duc va danh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ty sang ma hoi. hieu ((ve cam) or (va cam)) duc va danh lai cua te".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ty sang ma hoi. hieu ((ve cam) or (va cam)) duc va danh lai cua te*.