Perhaps you should try some spelling variations:
van dinh » van minh, van dich, va dinh
dinh le » dinh ve, dinh ly, dinh ket
xang xa » lang xa, mang xa, ang xa
sach ty » sach tu, sach thu, xach tay
duc van » duc va, duc tan, duc manh
le cua » ly cua
ve cac » vien cac
cua su » qua su

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: vu ((sach ty) OR (sach y)) xang xa hoi. hieu ((ve cac) OR (va cac)) duc van dinh le cua su~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ty) OR (sach y)) xang xa hoi. hieu ((ve cac) or (va cac)) duc van dinh le cua su~".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ty) OR (sach y)) xang xa hoi. hieu ((ve cac) or (va cac)) duc van dinh le cua su*.