Perhaps you should try some spelling variations:
investments series » investment series, investment services, investment ties
investment period » investment series, investment policy, investment demand
scale investments » scale investment, estate investments, social investments
safer investment » safer investments, water investment, water investments
kent » rent, kunt, kept

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

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