I find 0 investors no matter what I search in Europe? Edit; I guess it has glitches? Seems for the same query I get 0 or many sometimes. Can I change my filte

I find 0 investors no matter what I search in Europe? Edit; I guess it has glitches? Seems for the same query I get 0 or many sometimes. Can I change my filter after search? It seems to throw out my settings which is weird as my type of business, what round and location are not going to change, so entering that multiple times is... no good.