Perhaps you should try some spelling variations:
investment period » investment series, investment policy, adjustment period
forest investment » foreign investment, direct investment, foreign investments
fixed investment » direct investment
investment flows » investment funds
empty forest » empty nest, empty front, empty fruit
rent fixed » net fixed

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. rent fixed investment flows ) or ( h. empty forest investment period ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. rent fixed investment flows ) OR ( h. empty forest investment period ))*.