Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
va kinh » va tinh, qua kinh
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
vi cua » vai cua
di cua » dai cua, doi cua, de cua
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: thu sach v nang x hoi. hieu ve pham duc va kinh ((vi cua) OR (di cua)) tre~.
• Adding a wildcard symbol may retrieve word variants: thu sach v nang x hoi. hieu ve pham duc va kinh ((vi cua) or (di cua)) tre*.