Perhaps you should try some spelling variations:
private investments » private investment, private investors
investments series » investment series, investments serbia, investments sri
scale investments » scale investment, estate investments, social investments
likert private » direct private, limit private, delivery private
kept scale » debt scale, likert scale

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. kept scale investments series ) or ( h. likert private investments series ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. kept scale investments series ) OR ( h. likert private investments series )).
• Adding a wildcard symbol may retrieve word variants: (( h. kept scale investments series ) or ( h. likert private investments series ))*.