Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cau theo » cau thi, cau tao
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
ve cac » va cac, vien cac

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 lang xa hoi. hieu ((ve cham) or (ve cac)) xuc va hanh vi ((cua tre) or (cau theo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky lang xa hoi. hieu ((ve cham) OR (ve cac)) xuc va hanh vi ((cua tre) OR (cau theo)).
• Adding a wildcard symbol may retrieve word variants: toc sach ky lang xa hoi. hieu ((ve cham) or (ve cac)) xuc va hanh vi ((cua tre) or (cau theo))*.