Perhaps you should try some spelling variations:
thuoc sach » hoc sach, thuat sach, thuoc sinh
nuoc sach » nguoi sach, hoc sach, cuoc cach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
va dinh » van dinh, va kinh, va tinh
v nang » va nang, vu nang, van nang
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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: ((thuoc sach) OR (nuoc sach)) v nang xa hoi. hieu ve pham duc va dinh ((vi cua) OR (di cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) OR (nuoc sach)) v nang xa hoi. hieu ve pham duc va dinh ((vi cua) or (di cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) OR (nuoc sach)) v nang xa hoi. hieu ve pham duc va dinh ((vi cua) or (di cua)) tre*.