Perhaps you should try some spelling variations:
government services » government securities
investment period » investment series, investment policy, adjustment period
state government » e government
firm investment » farm investment, term investment, from investment
report firm » report forms, report from, report file

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. report firm investment period ) or ( h. kept state government services ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. report firm investment period ) OR ( h. kept state government services )).
• Adding a wildcard symbol may retrieve word variants: (( h. report firm investment period ) or ( h. kept state government services ))*.