Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
sang tao » hang tai
dua ban » dia ban, cua ban, qua ban
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
tao hoa » bao hoa, tao hoi, tao ho
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
van ca » van cau, van cua, tan ca
van ha » van hoa, van chat, van hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky sang tao hoa. hieu ((((van ca) OR (van ha))) or (dan ca)) dua ban thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky sang tao hoa. hieu ((((van ca) OR (van ha))) OR (dan ca)) dua ban thanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky sang tao hoa. hieu ((((van ca) OR (van ha))) or (dan ca)) dua ban thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ky sang tao hoa. hieu ((((van ca) OR (van ha))) or (dan ca)) dua ban thanh vai cua tre*.