Perhaps you should try some spelling variations:
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
ket cua » ket qua, det cua, keo cua
va kinh » va tinh, qua kinh
va dinh » van dinh, va tinh, vu dinh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
cam luc » cau luc
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.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu xang xa hoi. hieu ve ((cam luc) or (cam xuc)) ((va dinh) or (va kinh)) ket cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu xang xa hoi. hieu ve ((cam luc) OR (cam xuc)) ((va dinh) OR (va kinh)) ket cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach tu xang xa hoi. hieu ve ((cam luc) or (cam xuc)) ((va dinh) or (va kinh)) ket cua tre*.