Perhaps you should try some spelling variations:
competitiviness » ccompetitiveness, scompetitiveness, competiveness
competitivenes » ccompetitiveness, scompetitiveness, competitions, competitionnes
competitivenest » ccompetitivenesst, scompetitivenesst, competitionst, competitionnest, competiveness
competitiveness » ccompetitivenesss, scompetitivenesss, competitionss, competitionness
competitive » competition

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((competitiviness or (competitivenes OR competitive)) or (competitivenest or competitiveness))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((competitiviness OR (competitivenes OR competitive)) OR (competitivenest OR competitiveness))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((competitiviness or (competitivenes OR competitive)) or (competitivenest or competitiveness))*".