Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
toc sach » hoc sach, doc sach, thuoc sach
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
vai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va
loc va » hoc va, luc va

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) or (toc sach)) ky sang ma hoi. hieu ve cham ((xuc va) or (loc va)) hanh vai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (toc sach)) ky sang ma hoi. hieu ve cham ((xuc va) OR (loc va)) hanh vai cua vat.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (toc sach)) ky sang ma hoi. hieu ve cham ((xuc va) or (loc va)) hanh vai cua vat*.