Perhaps you should try some spelling variations:
petruow » petrow (Expand Search), petriuow (Expand Search), petruuow (Expand Search), petrouow (Expand Search)
petr » petri (Expand Search), petru (Expand Search), petro (Expand Search)
petrooi » petriooi (Expand Search), petruooi (Expand Search), petroooi (Expand Search)
petroooi » petrioooi (Expand Search), petruoooi (Expand Search), petrooooi (Expand Search)
petrui » petriui (Expand Search), petruui (Expand Search), petroui (Expand Search), petri (Expand Search), petru (Expand Search)
peteri » peterdi (Expand Search), petri (Expand Search), peters (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 (((petruow OR (petr OR peter)) o) OR ((((petrooi OR petroooi) OR peteri) OR petrui) _)). s.~".
• Adding a wildcard symbol may retrieve word variants: fop (((petruow OR (petr OR peter)) o) OR ((((petrooi OR petroooi) OR peteri) OR petrui) _)). s.*.