Perhaps you should try some spelling variations:
purse » pursue, pure, pulse
perse » pese, verse, persa
perseo » peseo, verseo, persao, persello
practitioner » practitioners
curse » curso, cure
cursa » curso, cura, curia
cursan » curson, curan, curian
curson » courson, curso, cursos

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( (((nurse OR nurkse) OR (purse OR (perse OR perseo))) OR nurses) practitioner ) OR ( ((curse OR course) OR (cursa OR (cursan OR curson))) practitioner ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (((nurse OR nurkse) OR (purse OR (perse OR perseo))) OR nurses) practitioner ) OR ( ((curse OR course) OR (cursa OR (cursan OR curson))) practitioner ))".
• Adding a wildcard symbol may retrieve word variants: (( (((nurse OR nurkse) OR (purse OR (perse OR perseo))) OR nurses) practitioner ) OR ( ((curse OR course) OR (cursa OR (cursan OR curson))) practitioner ))*.