Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
ky dang » ky danh
dan day » da day, dan dat, dan da
day cua » dai cua
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, me hoi
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau

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 ((ky dang) or (ky nang)) ((ma hoi) or (ma hoa)). hieu ve cham xuc va dan day cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((ky dang) OR (ky nang)) ((ma hoi) OR (ma hoa)). hieu ve cham xuc va dan day cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ((ky dang) or (ky nang)) ((ma hoi) or (ma hoa)). hieu ve cham xuc va dan day cua tre*.