Perhaps you should try some spelling variations:
practitioner » practitioners
cursa » cura, curia, curva
cursan » curan, curian, curvan
coria » corina, coriat, soria
courson » corson
curvan » curvas, curva, curran
currie » carrie
curiel » muriel, uriel

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nurkse practitioner ) OR ( (course OR ((cursa OR coria) OR (((curso OR courson) OR (curvan OR cursan)) OR (currie OR curiel)))) practitioner ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( nurkse practitioner ) OR ( (course OR ((cursa OR coria) OR (((curso OR courson) OR (curvan OR cursan)) OR (currie OR curiel)))) practitioner ))*".