Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
cua triet » cua viet, su triet, va triet
te sach » toc sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang
oc van » hoc van, luoc van, quoc van
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: te sach y nang x hoi. hieu ve cham ((oc van) OR (hoc dan)) thanh lai ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x hoi. hieu ve cham ((oc van) or (hoc dan)) thanh lai ((cua tre) OR (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu ve cham ((oc van) or (hoc dan)) thanh lai ((cua tre) OR (cua triet))*.