Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
nang tao » nang cao, sang tao, nang tai
chua tre » chua tri, cua tre, chua trieu
su sach » so sach, vu sach
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
vi chua » va chua, vi khuan, chi chua
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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: ((su sach) OR (toc sach)) ky nang tao hoi. hieu ve cam xuc va hanh vi chua tre~.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (toc sach)) ky nang tao hoi. hieu ve cam xuc va hanh vi chua tre*.