Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
hang cho » sang cho, hang khoa, phong cho
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
xang cho » sang cho, tang cho, bang cho
hoc sach » hoc sinh, hoc cac, hoc anh
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
hanh va » hang va, hanh vi
cua cau » cua cac, cua chu, cua cay
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (hoc sach)) ty ((xang cho) or (hang cho)) hoc. hieu van cac xuc van hanh va cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ty ((xang cho) OR (hang cho)) hoc. hieu van cac xuc van hanh va cua cau*.