Perhaps you should try some spelling variations:
peterow » petrow (Expand Search)
petro » petri (Expand Search), petru (Expand Search), petero (Expand Search), petrio (Expand Search), petruo (Expand Search)
petrov » petriv (Expand Search), petruv (Expand Search), peterov (Expand Search), petriov (Expand Search), petruov (Expand Search)
petriivw » peteriivw (Expand Search), petriiivw (Expand Search), petruiivw (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (Expand Search)
petruv » peteruv (Expand Search), petriuv (Expand Search), petruuv (Expand Search), petru (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petriivw OR peteriiovw) OR (peterow OR petro)) o) OR ((petr OR (petrov OR petruv)) _)). s.~".
• Adding a wildcard symbol may retrieve word variants: fop ((((petriivw OR peteriiovw) OR (peterow OR petro)) o) OR ((petr OR (petrov OR petruv)) _)). s.*.