Perhaps you should try some spelling variations:
tinh tri » dinh tri, minh tri, chinh tri
su sach » vu sach
va tinh » may tinh
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
so sach » so sanh, bo sach, co sach
va cam » va cham, va cac, va cao
y lang » o lang, _ lang, tay lang
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, ve cai

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: ((su sach) OR (so sach)) y lang xa hoi. hieu ((ve cam) OR (va cam)) tuc va tinh tri cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) y lang xa hoi. hieu ((ve cam) OR (va cam)) tuc va tinh tri cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) y lang xa hoi. hieu ((ve cam) OR (va cam)) tuc va tinh tri cua tre*.