Perhaps you should try some spelling variations:
investment period » investment series, investment policy, adjustment period
better investment » sector investment, sector investments, term investment
notes investment » does investment, rates investment, forest investment
melt better » get better, eat better, help better
deep notes » deep node

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. deep notes investment period ) OR ( h. melt better investment activities ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. deep notes investment period ) OR ( h. melt better investment activities ))".
• Adding a wildcard symbol may retrieve word variants: (( h. deep notes investment period ) OR ( h. melt better investment activities ))*.