Perhaps you should try some spelling variations:
perse » pese, verse, persa
perseo » peseo, verseo, persao, persello
curse » course, cure
cursa » curia, curva
cursan » curian, curvan
curian » curia, burian, curiae
cura » cuba, cuya, cara
practitioner » practitioners

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((( perse OR (perseo OR (curse OR (((cursa OR curso) OR (cursan OR curian)) OR cura)))) practitioner ) OR ( nurkse practitioner ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((( perse OR (perseo OR (curse OR (((cursa OR curso) OR (cursan OR curian)) OR cura)))) practitioner ) OR ( nurkse practitioner )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((( perse OR (perseo OR (curse OR (((cursa OR curso) OR (cursan OR curian)) OR cura)))) practitioner ) OR ( nurkse practitioner ))".
• Adding a wildcard symbol may retrieve word variants: ((( perse OR (perseo OR (curse OR (((cursa OR curso) OR (cursan OR curian)) OR cura)))) practitioner ) OR ( nurkse practitioner ))*.