Perhaps you should try some spelling variations:
petriuuv » peteriuuv (Expand Search), petriiuuv (Expand Search), petroiuuv (Expand Search)
petriuiov » peteriuiov (Expand Search), petriiuiov (Expand Search), petroiuiov (Expand Search)
petriiiov » peteriiiov (Expand Search), petriiiiov (Expand Search), petroiiiov (Expand Search)
petriuiiiiov » peteriuiiiiov (Expand Search), petriiuiiiiov (Expand Search), petroiuiiiiov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petr » peter (Expand Search), petri (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 ((petriuuv OR (petriuiov OR (petriiiov OR petriuiiiiov))) OR (petru OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuuv OR (petriuiov OR (petriiiov OR petriuiiiiov))) OR (petru OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petriuuv OR (petriuiov OR (petriiiov OR petriuiiiiov))) OR (petru OR petr)) o.s.*.