Perhaps you should try some spelling variations:
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
kinh ve » kinh te, dinh ve, kinh viet
minh ve » dinh ve, minh va, trinh ve
cua tre » cua te, cuu tre, cua triet
cau luc » cau truc, cau phuc
hieu ve » hieu va, hieu van
xang xa » lang xa, mang xa, ang xa
tu xang » ty xang, tu lang, tu quang

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 tu xang xa hoi. hieu ve ((cau luc) OR (cam xuc)) van ((minh ve) OR (kinh ve)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu xang xa hoi. hieu ve ((cau luc) or (cam xuc)) van ((minh ve) OR (kinh ve)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach tu xang xa hoi. hieu ve ((cau luc) or (cam xuc)) van ((minh ve) OR (kinh ve)) cua tre*.