Perhaps you should try some spelling variations:
perse » verse, persa, pere
perseo » verseo, persao, pereo
persello » versello, persallo, perello
pese » ese
verseo » verso, verse, versao
peso » pero, paso, eso
vera » era, vega, ver
cursa » cursan, curso, cura

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((nurses OR (((perse OR pese) OR ((((perseo OR verseo) OR peso) OR (personas OR vera)) OR persello)) OR cursa)) OR nurkse) practitioners~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nurses OR (((perse OR pese) OR ((((perseo OR verseo) OR peso) OR (personas OR vera)) OR persello)) OR cursa)) OR nurkse) practitioners".
• Adding a wildcard symbol may retrieve word variants: ((nurses OR (((perse OR pese) OR ((((perseo OR verseo) OR peso) OR (personas OR vera)) OR persello)) OR cursa)) OR nurkse) practitioners*.