Perhaps you should try some spelling variations:
"fop peteriiiiv OR petruiiv OR peterv OR petriv OR petruv OR petro OR petr o.s.*" » "fop peteriiiiv OR petruiiv OR peterv OR petriv OR petruv OR petrov OR petr o.s.*" (Expand Search), "fop peteriiiiv OR petruiiv OR peterv OR petriv OR petruv OR petri OR petr o.s.*" (Expand Search), "fop peteriiiiv OR petruiiv OR peterv OR petriv OR petruv OR petru OR petr o.s.*" (Expand Search), "fop peteriiiiv OR peteruiiv OR peterv OR peteriv OR peteruv OR petero OR peter o.s.*" (Expand Search), "fop peteriiiiv OR petriuiiv OR peterv OR petriiv OR petriuv OR petrio OR petri o.s.*" (Expand Search), "fop peteriiiiv OR petruuiiv OR peterv OR petruiv OR petruuv OR petruo OR petru o.s.*" (Expand Search)

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

• Removing quotes may allow a broader search: fop (((peteriiiiv OR petruiiv) OR ((peterv OR petriv) OR petruv)) OR (petro OR petr)) o.s.*.