Perhaps you should try some spelling variations:
enhancing expert » enhancing export, enhancing effect, enhanced expert
channel experts » channel export, channel effects, channel events
iea climate » sea climate, ira climate, area climate
group part » groups part

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: oecd/iea climate ((enhancing expert) OR (channel experts)) group part.
• Adding a wildcard symbol may retrieve word variants: oecd/iea climate ((enhancing expert) or (channel experts)) group part*.