Perhaps you should try some spelling variations:
professional experience » personal experience, professional competence
professional expertise » professional perspectives
practices » practicals
practice » practical

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((professional expertise) OR (professional experience))) OR (((((professional practices) OR (professional practice))) OR (professional services)))) distilled.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((professional expertise) or (professional experience))) or (((((professional practices) OR (professional practice))) or (professional services)))) distilled".
• Adding a wildcard symbol may retrieve word variants: ((((professional expertise) or (professional experience))) or (((((professional practices) OR (professional practice))) or (professional services)))) distilled*.