Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
van hanh » ban hanh, van anh, van ban
bo sach » co sach, hoc sach
vai cuu » vai cua
va cham » va chat, va tham
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
xang x » nang x
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ty xang x hoi. hieu ((ve cam) or (va cham)) thuc ((van hanh) OR (van thanh)) vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ty xang x hoi. hieu ((ve cam) OR (va cham)) thuc ((van hanh) OR (van thanh)) vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ty xang x hoi. hieu ((ve cam) or (va cham)) thuc ((van hanh) OR (van thanh)) vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: bo sach ty xang x hoi. hieu ((ve cam) or (va cham)) thuc ((van hanh) OR (van thanh)) vai cuu tre*.