Perhaps you should try some spelling variations:
tang tao » sang tao, tang tai, nang tao
cham duc » pham duc, cham soc, pham duy
tu cach » tu cac
su sach » so sach, vu sach
ky tang » ky nang, ky dang, kho tang
tao hoi » tao khoi, tao boi, tay hoi
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su sach)) ky tang tao hoi. hieu va cham duc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky tang tao hoi. hieu va cham duc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ky tang tao hoi. hieu va cham duc va hanh vi cua tre*.