Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
te sach » toc sach
cuc ban » cua ban, cac ban, cuu ban
ty hang » ty xang, thi hang, thu hang
ly hang » ly quang
va cam » va cham, va cao, va cai
cua te » cua tu
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: te sach ((ty hang) OR (ly hang)) x hoi. hieu ((va cam) or (va cac)) cuc ban thanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty hang) OR (ly hang)) x hoi. hieu ((va cam) OR (va cac)) cuc ban thanh dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty hang) OR (ly hang)) x hoi. hieu ((va cam) or (va cac)) cuc ban thanh dai cua te*".