Perhaps you should try some spelling variations:
nurse » nurkse
nurses » nurkses
purse » pure, pulse, pursc
purses » pures, pulses, purscs, purves, purposes
perse » perseo, pese, verse
practitioner » practitioners
pursue » pursued
curse » course, curso, cursa
cursos » curso, recursos

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 (purse OR perse)) practitioner ) OR (( (nurses OR (purses OR pursue)) OR (curse OR cursos)) practitioner ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( (nurse OR (purse OR perse)) practitioner ) OR (( (nurses OR (purses OR pursue)) OR (curse OR cursos)) practitioner ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (nurse OR (purse OR perse)) practitioner ) OR (( (nurses OR (purses OR pursue)) OR (curse OR cursos)) practitioner ))*".