Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
danh hai » dang hai, lanh hai, manh hai
hai cua » thai cua, dai cua, hoi cua
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((ty nang) or (ty hang)) xa hoi. hieu ((ve cam) or (va cac)) xuc va danh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ty nang) OR (ty hang)) xa hoi. hieu ((ve cam) OR (va cac)) xuc va danh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ty nang) or (ty hang)) xa hoi. hieu ((ve cam) or (va cac)) xuc va danh hai cua tre*.