Perhaps you should try some spelling variations:
"bioenergy trade adoption" » "bioenergy tree adoption", "energy trade adoption", "bioenergy case adoption", "bioenergy brady adoption", "bioenergy trade option", "bioenergy broader adoption"
"bioenergy der adoption" » "bioenergy dna adoption", "bioenergy part adoption", "bioenergy tree adoption", "bioenergy user adoption", "bioenergy _ adoption"

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: (("bioenergy der adoption") OR ("bioenergy trade adoption")).
• Removing quotes may allow a broader search: (( bioenergy der adoption ) or ( bioenergy trade adoption )).
• Adding a wildcard symbol may retrieve word variants: (("bioenergy der adoption") or ("bioenergy trade adoption"))*.