Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cham thuc » nham thuc, pham thuc, tham thuc
toc sach » hoc sach, doc sach, thuoc sach
sach tay » xach tay, sach hay, sach nay
tay lang » tai lang, tay tang, tay quang
lang van » dang van, tang van, hoang van
thuc van » thuc vat, thuc dan, thuc va
van hoi » van hoa, van hoc, van hoe
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
ve cua » le cua, de cua, ve cum
te cua » tue cua, le cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach tay lang van hoi. hieu ve cham thuc van thanh ((ve cua) OR (te cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach tay lang van hoi. hieu ve cham thuc van thanh ((ve cua) OR (te cua)) tre".
• Adding a wildcard symbol may retrieve word variants: toc sach tay lang van hoi. hieu ve cham thuc van thanh ((ve cua) OR (te cua)) tre*.