Perhaps you should try some spelling variations:
thien van » thi van
van thanh » van tuan
ban thanh » ban hanh, ban hang
tu sach » thu sach, su sach, tu cach
te sach » toc sach
xang xa » lang xa, mang xa, ang xa
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) ty xang xa hoi. thien van nam cua ((van thanh) OR (ban thanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ty xang xa hoi. thien van nam cua ((van thanh) OR (ban thanh)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ty xang xa hoi. thien van nam cua ((van thanh) OR (ban thanh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ty xang xa hoi. thien van nam cua ((van thanh) OR (ban thanh)) vi cua tre*.