Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh lai » thanh hai, thanh lap, thanh loi
sang ma » tang ma, nang ma, sang tao
qua ban » cua ban, qua quan
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cao, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky ((sang ma) or (mang may)) hoa. hieu ((va cam) OR (va cac)) qua ban thanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky ((sang ma) OR (mang may)) hoa. hieu ((va cam) OR (va cac)) qua ban thanh lai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky ((sang ma) or (mang may)) hoa. hieu ((va cam) OR (va cac)) qua ban thanh lai cua tre*".