Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
va cham » va chat, va tham
vai cua » dai cua, hai cua, lai cua
hieu va » lieu va, hieu qua
ty hang » ly hang, thi hang, thu hang
tuc va » thuc va, truc va, tuc xa
cua te » cua tu
ac va » tac va, bac va, mac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((ty hang) or (ty xang)) xa hoi. hieu va cham ((ac va) or (tuc va)) hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty hang) OR (ty xang)) xa hoi. hieu va cham ((ac va) OR (tuc va)) hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ((ty hang) or (ty xang)) xa hoi. hieu va cham ((ac va) or (tuc va)) hanh vai cua te*.