Perhaps you should try some spelling variations:
investment choices » investment costs, investment process
investment period » investment series, investment policy, adjustment period
based investment » fixed investment, best investment, bond investment
kept water » ment water, peat water
melt water » salt water
test based » text based, rest based, trust based

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 water) OR (melt water)) investment period ) or ( h. test based investment choices ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. ((kept water) OR (melt water)) investment period ) OR ( h. test based investment choices )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. ((kept water) OR (melt water)) investment period ) or ( h. test based investment choices ))".
• Adding a wildcard symbol may retrieve word variants: (( h. ((kept water) OR (melt water)) investment period ) or ( h. test based investment choices ))*.