Perhaps you should try some spelling variations:
purse » pursue, pure, curse
purses » pursues, pures, curses, purves, purposes
practitioner » practitioners
cursa » curia, curva
cursan » curian, curvan
cure » cubre, cuore, curse
cura » cuba, cuya, cara
carson » larson

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( (purse OR (nurses OR (purses OR purpose))) practitioner ) OR ( ((cursa OR cure) OR ((cursan OR cura) OR (carson OR curso))) practitioner ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (purse OR (nurses OR (purses OR purpose))) practitioner ) OR ( ((cursa OR cure) OR ((cursan OR cura) OR (carson OR curso))) practitioner ))".
• Adding a wildcard symbol may retrieve word variants: (( (purse OR (nurses OR (purses OR purpose))) practitioner ) OR ( ((cursa OR cure) OR ((cursan OR cura) OR (carson OR curso))) practitioner ))*.