Further on in this thread you mention that you are trying to find a town, Pouriot, in Tarnow Poland.
I am a retired librarian. You should contact a large central library in your area,explain your problem, and ask if they have a gazeteer. A gazeteer is an annotated dictionary of place names around the world. It's possible that you have the name slightly misspelled and don't know it. It's also possible, since this place is in Poland, that it is now located in a neighboring country and has a different name entirely. For example, Gdansk, Poland, used to be Danzig, Germany. See if the library has a historical atlas to help you figure out former geographic boundaries.