Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
cam tuc » cam xuc, cam tu, nam thuc
vai cua » dai cua, hai cua, lai cua
xang xa » lang xa, mang xa, ang xa
hieu va » hieu qua
va hanh » van hanh, va thanh, va danh
tuc va » thuc va, truc va, tuc xa
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 (thu sach)) ty xang xa hoi. ((hieu va) OR (lieu va)) cam tuc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu sach)) ty xang xa hoi. ((hieu va) OR (lieu va)) cam tuc va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thu sach)) ty xang xa hoi. ((hieu va) OR (lieu va)) cam tuc va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thu sach)) ty xang xa hoi. ((hieu va) OR (lieu va)) cam tuc va hanh vai cua te*.