Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
thanh vi » hanh vi, thanh ve, nhanh vi
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
nang co » nang cao, nang doc, nang noi
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai
co hoi » co hoc, co loi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang co hoi. hieu ((ve cam) OR (va cam)) xuc van ((thanh vi) OR (thanh va)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang co hoi. hieu ((ve cam) OR (va cam)) xuc van ((thanh vi) or (thanh va)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang co hoi. hieu ((ve cam) OR (va cam)) xuc van ((thanh vi) or (thanh va)) cua tre*.