Perhaps you should try some spelling variations:
thien van » thi van
cau tren » cu tren, dau tren, ca tren
cuu tre » cua tre, cau treo
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
hac tuc » thac toc, thai tuc
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
so sanh » do sanh
van hac » van hoc, van ha, van hai
v nang » va nang, vu nang, van nang
tuc va » thuc va, truc va, tuc xa

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 tre) OR (cau tren))~.
• 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 tre) OR (cau tren))~".
• 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 tre) OR (cau tren))*.