Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh ven » trinh ven, tinh yen, sinh vien
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
va nam » van nam, ha nam, va nay

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 ty lang xa hoi. lieu va nam ((xuc va) OR (tuc va)) tinh ven ((cuu tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty lang xa hoi. lieu va nam ((xuc va) OR (tuc va)) tinh ven ((cuu tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: su sach ty lang xa hoi. lieu va nam ((xuc va) OR (tuc va)) tinh ven ((cuu tre) or (cua triet))*.