Perhaps you should try some spelling variations:
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
van cac » van bac, dan cac, van ca
van cau » van dau, van hau, van chat
van hac » van hoc, van ha, van hai
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh ca » hanh cac, hanh cat, hanh cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ca cua » co cua

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 y nang xa hoi. hieu ((((van cac) OR (van cau))) OR (van hac)) thuc va hanh ca cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((((van cac) OR (van cau))) or (van hac)) thuc va hanh ca cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((((van cac) OR (van cau))) or (van hac)) thuc va hanh ca cua tre*.