Perhaps you should try some spelling variations:
tang tai » hang tai, dung tai, sang tao
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tai roi » lai roi, tai hoi, tai loi
hieu ve » hieu va, hieu van
va danh » va dinh, va hanh, dia danh
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky tang tai roi. hieu ve cam xuc ((va danh) or (va dan)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky tang tai roi. hieu ve cam xuc ((va danh) OR (va dan)) dai cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ky tang tai roi. hieu ve cam xuc ((va danh) or (va dan)) dai cua tre*.