Perhaps you should try some spelling variations:
"fop peterou OR petruuuv OR petrio OR perio OR petr OR petriu OR per o.s.*" » "fop peterou OR petruuuv OR petri OR perio OR petr OR petriu OR per o.s.*" (Expand Search), "fop peterou OR petruuuv OR petris OR perio OR petr OR petriu OR per o.s.*" (Expand Search), "fop peterou OR petruuuv OR petro OR perio OR petr OR petriu OR per o.s.*" (Expand Search), "fop peterou OR peteruuuv OR peterio OR perio OR peter OR peteriu OR per o.s.*" (Expand Search), "fop peterou OR petriuuuv OR petriio OR perio OR petri OR petriiu OR per o.s.*" (Expand Search), "fop peterou OR petruuuuv OR petruio OR perio OR petru OR petruiu OR per o.s.*" (Expand Search), "fop peterou OR petruuuv OR petrio OR perio OR petr OR petri OR per o.s.*" (Expand Search), "fop peterou OR petruuuv OR petrio OR perio OR petr OR petru OR per o.s.*" (Expand Search), "fop peterou OR petruuuv OR petrio OR perio OR petr OR petris OR per 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 ((peterou OR petruuuv) OR ((petrio OR perio) OR (petr OR (petriu OR per)))) o.s.*.