Perhaps you should try some spelling variations:
"h. kent sector investment demands" » "h. kent sector investment demand", "h. kent sector investment funds", "h. kent sector investment banks", "h. meat sector investment demands", "h. heat sector investment demands", "h. cement sector investment demands"
"h. testing fixed investment does" » "h. testing direct investment does", "h. testing fixed investment codes", "h. testing fixed investment flows", "h. testing fixed investment costs", "h. testing times investment does", "h. voting fixed investment does"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("h. testing fixed investment does") OR ("h. kent sector investment demands"))~.
• Removing quotes may allow a broader search: (( h. testing fixed investment does ) or ( h. kent sector investment demands ))~.
• Adding a wildcard symbol may retrieve word variants: (("h. testing fixed investment does") or ("h. kent sector investment demands"))*.