Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
va cham » va chat, va tham
hieu va » lieu va, hieu qua
cua hoi » cua moi
sach ly » sach y, sach ty, sach hay
sach lo » sach dao, sach doi, sach hoi
ca hoi » cau hoi, xa hoi, co hoi
cua te » cua tu

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: tu ((sach ly) OR (sach lo)) hang ((ca hoi) OR (cua hoi)). hieu va cham truc va hanh vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ly) or (sach lo)) hang ((ca hoi) OR (cua hoi)). hieu va cham truc va hanh vai cua te~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ly) or (sach lo)) hang ((ca hoi) OR (cua hoi)). hieu va cham truc va hanh vai cua te*.