Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
dang xay » dang van, van xay
cam thuc » am thuc, nam thuc, cam thu
thuc van » thuc vat, thuc dan, thuc va
toc sac » toc sach, toc san, hoc sach
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
bai cua » ban cua, hai cua, lai cua
o dang » xo dang, do dang, so dang
ve cam » ve cham, ve cac, va cam

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: toc sac o dang xay hoi. hieu ve cam thuc van thanh ((((bai cua) OR (bai ca))) OR (dai cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac o dang xay hoi. hieu ve cam thuc van thanh ((((bai cua) OR (bai ca))) or (dai cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: toc sac o dang xay hoi. hieu ve cam thuc van thanh ((((bai cua) OR (bai ca))) or (dai cua)) tre*.