Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
van thanh » van tuan
tu sach » thu sach, su sach, te sach
lap cua » lai cua, tap cua, lam cua
cua tre » cua te, cuu tre, cua triet
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi
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: tu sach y nang ((ma hoi) or (xa hoi)). hieu ve cac xuc ((van thanh) OR (ban thanh)) lap cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ((ma hoi) OR (xa hoi)). hieu ve cac xuc ((van thanh) OR (ban thanh)) lap cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ((ma hoi) or (xa hoi)). hieu ve cac xuc ((van thanh) OR (ban thanh)) lap cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((ma hoi) or (xa hoi)). hieu ve cac xuc ((van thanh) OR (ban thanh)) lap cua tre*.