Perhaps you should try some spelling variations:
investment period » investment policy, investment demand, adjustment period
investment series » investment services, investment barriers, investment treaties
scale investment » estate investment, trade investment, estate investments
best investment » debt investment, net investment, forest investment
kent scale » likert scale

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: (( h. kent best investment period ) OR ( h. kent scale investment series ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. kent best investment period ) or ( h. kent scale investment series ))*.