Perhaps you should try some spelling variations:
sang tao » hang tai
tao hoat » cao hoat, tao hoa, toan hoat
hieu van » hieu va, thien van, lieu va
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
van cam » van nam, van lam, van cau
cam luc » cam xuc, cau luc
va danh » va dinh, va dan, va hanh
hai cua » thai cua, dai cua, hoi cua
luc va » duc va, tuc va, loc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky sang tao hoat. hieu van cam luc va danh ((di cua) or (hai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky sang tao hoat. hieu van cam luc va danh ((di cua) OR (hai cua)) te.
• Adding a wildcard symbol may retrieve word variants: so sach ky sang tao hoat. hieu van cam luc va danh ((di cua) or (hai cua)) te*.