Perhaps you should try some spelling variations:
chau tre » chay tren, chau tho, cho tre
cham duc » pham duc, cham soc, pham duy
va hanh » van hanh, va thanh, va danh
ve cham » va cham, ve chat, vu cham
tu sach » thu sach, su sach, te sach
tao hoi » tao khoi, tao boi, tay hoi
ty hang » ly hang, ty xang, thi hang
ty sang » ty xang, duy sang, thu sang
hieu ve » hieu va, hieu van
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((ty sang) OR (ty hang)) tao hoi. hieu ve cham duc ((va hanh) or (va dan)) lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty sang) OR (ty hang)) tao hoi. hieu ve cham duc ((va hanh) OR (va dan)) lai chau tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty sang) OR (ty hang)) tao hoi. hieu ve cham duc ((va hanh) or (va dan)) lai chau tre*".