Perhaps you should try some spelling variations:
sach tham » sach nha
tham nang » nham nang, tham lang, tham nhung
doc sach » hoc sach, toc sach, nuoc sach
va trinh » van trinh, va tinh, qua trinh
han cua » hang cua, nhan cua, than cua
cua tre » cua te, cuu tre, cua triet
cam luc » cau luc
hieu ve » hieu va, hieu 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: doc sach tham nang x hoi. hieu ve ((cam luc) OR (cam xuc)) ((va trinh) OR (lap trinh)) han cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach tham nang x hoi. hieu ve ((cam luc) or (cam xuc)) ((va trinh) OR (lap trinh)) han cua tre~".
• Adding a wildcard symbol may retrieve word variants: doc sach tham nang x hoi. hieu ve ((cam luc) or (cam xuc)) ((va trinh) OR (lap trinh)) han cua tre*.