Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh le » thinh le, thanh ve, thanh de
cham tuc » nham thuc, pham thuc, tham thuc
te sach » toc sach
hieu va » lieu va, hieu qua
tuc ban » thuc ban, truc ban, tu ban
hieu ve » hieu van
le cua » ly cua
y lang » _ lang, tay lang, yen lang
ha hoi » hoa hoi, ha noi, xa hoi
o lang » hoa lang, hoi lang

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 ((y lang) or (o lang)) ha hoi. ((hieu ve) OR (hieu va)) cham tuc ban thanh le cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y lang) OR (o lang)) ha hoi. ((hieu ve) OR (hieu va)) cham tuc ban thanh le cua vat*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y lang) or (o lang)) ha hoi. ((hieu ve) OR (hieu va)) cham tuc ban thanh le cua vat*".