Perhaps you should try some spelling variations:
sang tao » hang tai
cham duc » pham duc, cham soc, pham duy
chau tre » chay tren, chau tho, cho tre
sach thu » sach thue, sach thieu, sach tham
tao hoi » tao khoi, tao boi, tay hoi
sach ty » sach y, sach tu, xach tay
vu cham » va cham, vu kham, tu cham
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
hieu vu » hieu va, hieu ve, hieu su

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ty) OR (sach thu)) sang tao hoi. hieu vu cham duc ((va hanh) OR (va danh)) lai chau tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ty) OR (sach thu)) sang tao hoi. hieu vu cham duc ((va hanh) or (va danh)) lai chau tre~".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) OR (sach thu)) sang tao hoi. hieu vu cham duc ((va hanh) or (va danh)) lai chau tre*.