Perhaps you should try some spelling variations:
investment period » investment series, investment policy, adjustment period
investment demand » investment bank, investment fund, investor demand
water investment » water investments, rates investment, greater investment
net sector » meat sector, heat sector, ict sector
melt water » salt water

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. net sector investment demand ) or ( h. melt water investment period ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. net sector investment demand ) OR ( h. melt water investment period )).
• Adding a wildcard symbol may retrieve word variants: (( h. net sector investment demand ) or ( h. melt water investment period ))*.