Perhaps you should try some spelling variations:
nurse » nurkse, curse, purse
nurses » nurkses, curses, purses
purses » purse, purposes
purves » curves
practitioner » practitioners
cursa » curia
cursan » curian
cura » cuba, cuya, cara
curva » curvas, cueva, curia

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 ((purses OR purves) OR nurses)) practitioner ) OR ( (cursa OR ((((cura OR nuria) OR curva) OR curso) OR cursan)) practitioner ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (nurse OR ((purses OR purves) OR nurses)) practitioner ) OR ( (cursa OR ((((cura OR nuria) OR curva) OR curso) OR cursan)) practitioner ))".
• Adding a wildcard symbol may retrieve word variants: (( (nurse OR ((purses OR purves) OR nurses)) practitioner ) OR ( (cursa OR ((((cura OR nuria) OR curva) OR curso) OR cursan)) practitioner ))*.