Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
hanh ca » hanh cac, hanh cat, hanh cua
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
ca cua » co cua
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ly nang ((x hoi) OR (xa hoi)). ((hieu ve) or (hieu qua)) cam xuc va hanh ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ly nang ((x hoi) OR (xa hoi)). ((hieu ve) OR (hieu qua)) cam xuc va hanh ca cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ly nang ((x hoi) OR (xa hoi)). ((hieu ve) or (hieu qua)) cam xuc va hanh ca cua tre*".