Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh lai » thanh hai, thanh lap, thanh loi
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cac » van hac, van bac, van ca
dan cac » dan cach, dang cac, dan ca
van cau » van dau, van hau, van chat
dan ban » van ban, can ban, dan ba
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet

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 ky nang xa hoi. thien ((((van cac) OR (dan cac))) or (van cau)) dan ban thanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. thien ((((van cac) OR (dan cac))) OR (van cau)) dan ban thanh lai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. thien ((((van cac) OR (dan cac))) or (van cau)) dan ban thanh lai cua tre*".