Perhaps you should try some spelling variations:
petruiv » pentruiv (Expand Search), petriiv (Expand Search), peteruiv (Expand Search), petriuiv (Expand Search), petrouiv (Expand Search)
petru » pentru (Expand Search), petri (Expand Search), peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petruv » pentruv (Expand Search), petriv (Expand Search), peteruv (Expand Search), petriuv (Expand Search), petrouv (Expand Search), petrov (Expand Search)
petriui » peteriui (Expand Search), petriiui (Expand Search), petroiui (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)
peterov » petrov (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 ((petruiv OR (petriui OR petru)) OR (petr OR ((peterov OR petruv) OR petruiv))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruiv OR (petriui OR petru)) OR (petr OR ((peterov OR petruv) OR petruiv))) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petruiv OR (petriui OR petru)) OR (petr OR ((peterov OR petruv) OR petruiv))) o.s.*.