Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
sach phu » sach thu, sach phat, sach thue
phu lang » phap lang, phu khang, phu luong
thanh le » thinh le, thanh ve, thanh de
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
va cham » va chat, va tham
va cao » va cac, va co, va dao
tu ban » thu ban, te ban
le cua » ly cua

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 phu lang xa hoi. hieu ((va cao) or (va cham)) tu ban thanh le cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach phu lang xa hoi. hieu ((va cao) OR (va cham)) tu ban thanh le cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sach phu lang xa hoi. hieu ((va cao) or (va cham)) tu ban thanh le cua vat*.