Perhaps you should try some spelling variations:
petriuiiv » peteriuiiv (Expand Search), petruiuiiv (Expand Search), petroiuiiv (Expand Search)
petriov » peteriov (Expand Search), petruiov (Expand Search), petroiov (Expand Search)
petrouiiov » peterouiiov (Expand Search), petruouiiov (Expand Search), petroouiiov (Expand Search)
petruiiuiiov » peteruiiuiiov (Expand Search), petruuiiuiiov (Expand Search), petrouiiuiiov (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: fop ((petriuiiv OR (petriov OR (petrouiiov OR petruiiuiiov))) OR (petri OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuiiv OR (petriov OR (petrouiiov OR petruiiuiiov))) OR (petri OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petriuiiv OR (petriov OR (petrouiiov OR petruiiuiiov))) OR (petri OR petr)) o.s.*.