Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
van thanh » van tuan
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
sach so » mach so, sach lo, sach song
cao duc » dao duc, cao suc, giao duc
cua te » cua tu
so van » su van, vo van
van xa » van xay, van ha, dan xa

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 so van xa hoi. hieu ve ((pham duc) or (cao duc)) ((van thanh) or (ban thanh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach so van xa hoi. hieu ve ((pham duc) OR (cao duc)) ((van thanh) OR (ban thanh)) vai cua te.
• Adding a wildcard symbol may retrieve word variants: te sach so van xa hoi. hieu ve ((pham duc) or (cao duc)) ((van thanh) or (ban thanh)) vai cua te*.