Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
dang xay » dang van, van xay
thuc van » thuc vat, thuc dan, thuc va
te sach » toc sach
ve cham » va cham, ve chat, vu cham
hai cua » thai cua, hoi cua, lai cua
sach so » mach so, sach lo, sach song
xay hoi » xa hoi, tay hoi, cay phoi
so dang » su dang, so dan, so dung
ve cam » ve cac, va cam, ve cai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach so dang xay hoi. hieu ((ve cam) OR (ve cham)) thuc van thanh ((hai cua) OR (dai cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach so dang xay hoi. hieu ((ve cam) OR (ve cham)) thuc van thanh ((hai cua) or (dai cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: te sach so dang xay hoi. hieu ((ve cam) OR (ve cham)) thuc van thanh ((hai cua) or (dai cua)) tre*.