the one on the right sort of looks like an intestinal fluke, but it could just be undigested food.
Hopefully there are others critical minds on this forum. Good ! :)
Don't try to find parasites, try to reduce the annoying symptoms you have by cleansing your body and by eating herbs.
There will be many dead parasites which will be dissolved or blended with the feces or the phlegm. Sometimes you will know that what you evacuate is not "normal", but you won't be able to identify most of them.