Perhaps you should try some spelling variations:
tct xang » ty xang
van dinh » van minh, van dich, va dinh
tu quang » vu quang, chu quang, bui quang
te sach » toc sach
dinh le » dinh ve, dinh ly, dinh ket
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
le cua » ly cua

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 ((tct xang) or (tu quang)) xa hoi. hieu ve ((cau truc) or (cam xuc)) van dinh le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tct xang) OR (tu quang)) xa hoi. hieu ve ((cau truc) OR (cam xuc)) van dinh le cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((tct xang) or (tu quang)) xa hoi. hieu ve ((cau truc) or (cam xuc)) van dinh le cua tre*.