Perhaps you should try some spelling variations:
thien van » thi van
su sach » so sach, vu sach
va hanh » van hanh, va thanh, va danh
hac tuc » thac toc, thai tuc
van hac » van hoc, van ha, van hai
nang xa » nang x, lang xa, nang ma
so sanh » do sanh
v nang » va nang, vu nang, van nang
tuc va » thuc va, truc va, tuc xa
di cuu » di cau, dinh cuu
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: ((su sach) OR (so sanh)) v nang xa hoi. thien van hac tuc va hanh ((di cuu) OR (di cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) v nang xa hoi. thien van hac tuc va hanh ((di cuu) OR (di cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) v nang xa hoi. thien van hac tuc va hanh ((di cuu) OR (di cua)) tre*.