Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
de triet » ve triet, de thiet, su triet
tu sach » thu sach, su sach, te sach
vu dang » su dang, vu quang, cua dang
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xuc van » duc van, luc van, vuc van
hanh gi » hanh vi, danh gia, hanh noi
gi de » gia de, ga de, gi he

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (toc sach)) vu dang xa hoi. hieu va cham xuc van hanh gi de triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (toc sach)) vu dang xa hoi. hieu va cham xuc van hanh gi de triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (toc sach)) vu dang xa hoi. hieu va cham xuc van hanh gi de triet*.