Perhaps you should try some spelling variations:
thanh mang » thanh hang, hanh mang, nhanh mang
ban thanh » ban hanh, ban hang
mang cua » manh cua, dung cua, ban cua
sang tao » hang tai
van dam » van dao, van dau, van lam
qua ban » cua ban, qua quan
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
sang ma » tang ma, nang ma, mang may
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 ((sang ma) OR (sang tao)) hoa. hieu ((van dam) or (van nam)) qua ban thanh mang cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((sang ma) OR (sang tao)) hoa. hieu ((van dam) OR (van nam)) qua ban thanh mang cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((sang ma) OR (sang tao)) hoa. hieu ((van dam) or (van nam)) qua ban thanh mang cua tre*".