Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
nang cho » nang chon, ngang cho, sang cho
hieu van » hieu va, thien van, lieu va
xuc van » duc van, luc van, vuc van
hang di » hang doi, hang vi, hang dien
hanh di » hanh vi, hanh de, danh di
cac xuc » cam xuc, cac nuoc, chat xuc
sach tu » sach thu, cach tu, sach ty
van cac » van hac, van cau, van bac
cua cau » cua cac, cua chu, cua cay

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 tu ((nang cho) or (nang cao)) hoc. hieu van cac xuc van ((hanh di) OR (hang di)) cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tu ((nang cho) OR (nang cao)) hoc. hieu van cac xuc van ((hanh di) OR (hang di)) cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach tu ((nang cho) or (nang cao)) hoc. hieu van cac xuc van ((hanh di) OR (hang di)) cua cau*".