Genealogy / What does my Polish name mean? [401]

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Town of Olchowiec

My great-grandfather immigrated from Olchowiec but there are a few Olchowiecs in Poland. His last name was Raczkoski. Anyone know of a way to narrow it down to the correct town? Refer to: https://polishforums.com/archives/2005-2009/genealogy/tracz-family-olchowiec-samocice-26929/