Perhaps you should try some spelling variations:
investment period » investment series, investment policy, investment demand
based investment » fixed investment, best investment, bond investment
investment costs » investment funds, investment flows, investment banks
net investment » debt investment, _ investment, direct investment
test based » forest based, result based
kept » dept

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. test based investment costs ) or ( h. kept net investment period ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. test based investment costs ) OR ( h. kept net investment period ))*.