Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
banh vai » hanh vi, ban va, hanh va
ban banh » ban hanh, ban anh, ban danh
hieu van » hieu va, thien van, lieu va
cam cuc » cam xuc, cham cuu, pham cuc
cua tre » cuu tre, cua triet, dua tren
cuc ban » cua ban, cac ban, cuu ban
van cam » van nam, van lam, van cau
sach ky » sac ky, sach y, sach ty
sang ma » tang ma, nang ma, sang tao
nang xa » nang x, lang xa, nang ma
cua te » cua tu

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 ((nang xa) or (sang ma)) hoi. hieu van cam cuc ban banh vai ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky ((nang xa) OR (sang ma)) hoi. hieu van cam cuc ban banh vai ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky ((nang xa) or (sang ma)) hoi. hieu van cam cuc ban banh vai ((cua tre) OR (cua te))*".