Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
thi hang » thi hanh, thi nang, thi hong
van hanh » van thanh, ban hanh, van anh
hang cho » sang cho, hang khoa, phong cho
hoc sach » hoc sinh, hoc cac, hoc anh
cho hoc » co hoc, khoa hoc
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac
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: ((toc sach) OR (hoc sach)) thi hang cho hoc. hieu ve cac xuc van hanh di cua cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (hoc sach)) thi hang cho hoc. hieu ve cac xuc van hanh di cua cau*".