Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, tu cach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va dan » ca dan, va dau, va dap
va dao » ca dao
vi cua » vai cua, di 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: ((tu sach) OR (te sach)) y nang xa hoi. hieu ve cham soc ((va dan) OR (va dao)) vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) y nang xa hoi. hieu ve cham soc ((va dan) OR (va dao)) vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) y nang xa hoi. hieu ve cham soc ((va dan) OR (va dao)) vi cua tre*.