Perhaps you should try some spelling variations:
curse » course, curso, cursa
curses » courses, cursos, cursas, curves
practitioner » practitioners
purses » purves, pursues, pures, perses
purposes » purpose, proposes
pursues » pursued, pursue
purse » pursue, pure, perse

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( (curse OR (nurses OR curses)) practitioner ) OR ( (nurkse OR ((((purses OR purposes) OR pursues) OR curses) OR purse)) practitioner ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (curse OR (nurses OR curses)) practitioner ) OR ( (nurkse OR ((((purses OR purposes) OR pursues) OR curses) OR purse)) practitioner ))".
• Adding a wildcard symbol may retrieve word variants: (( (curse OR (nurses OR curses)) practitioner ) OR ( (nurkse OR ((((purses OR purposes) OR pursues) OR curses) OR purse)) practitioner ))*.