Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, mang may
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty ((nang ma) OR (nang cao)) hoi. hieu ve cham xuc va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((nang ma) OR (nang cao)) hoi. hieu ve cham xuc va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((nang ma) OR (nang cao)) hoi. hieu ve cham xuc va hanh vi cua tre*.