Perhaps you should try some spelling variations:
va thanh » ban thanh, va tinh, le thanh
te sach » toc sach
cam luc » cam xuc, cau luc
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
ky sang » ky nang, ky dang, duy sang
ve cam » ve cham, ve cac, va cam

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 ((ky sang) OR (ky tang)) xa hoi. hieu ve cam luc ((va thanh) OR (gia thanh)) lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky sang) or (ky tang)) xa hoi. hieu ve cam luc ((va thanh) OR (gia thanh)) lai cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky sang) or (ky tang)) xa hoi. hieu ve cam luc ((va thanh) OR (gia thanh)) lai cua tre*.