Perhaps you should try some spelling variations:
thien van » thi van
cau tren » cu tren, dau tren, ca tren
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
hac tuc » thac toc, thai tuc
su sach » vu sach
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
so sach » so sanh, bo sach, co sach
van hac » van hoc, van ha, van hai
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 sach)) ly nang xa hoi. thien van hac tuc va hanh vi ((cua tre) OR (cau tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ly nang xa hoi. thien van hac tuc va hanh vi ((cua tre) or (cau tren))~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ly nang xa hoi. thien van hac tuc va hanh vi ((cua tre) or (cau tren))*.