Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
lang van » dang van, tang van, hoang van
cam thuc » nam thuc, cam thu, can thuc
thanh le » thinh le, thanh ve, thanh de
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
van hoi » van hoa, van hoc, van hoe
hieu ve » hieu va, hieu van
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 ty lang van hoi. hieu ve ((cam thuc) OR (am thuc)) ban thanh le cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty lang van hoi. hieu ve ((cam thuc) OR (am thuc)) ban thanh le cua vat".
• Adding a wildcard symbol may retrieve word variants: tu sach ty lang van hoi. hieu ve ((cam thuc) OR (am thuc)) ban thanh le cua vat*.