Perhaps you should try some spelling variations:
cau theo » cau thi, cau tao
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
y nang » ky nang, ly nang, v nang
ve cai » va cai, ve cac, ve tai
luc va » duc va, tuc va, loc va
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho

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: tu sach y nang x hoi. hieu ((ve cai) OR (va cam)) luc va hanh vi ((cua tre) OR (cau theo))~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. hieu ((ve cai) or (va cam)) luc va hanh vi ((cua tre) or (cau theo))*.