Perhaps you should try some spelling variations:
climate channel » climate changes, climate changed, climate chance
channel experts » channel export, channel effects, channel events
change expert » change extent, changing expert, change effect
experts group » experts ground, expert groups, experts around
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( oecd/iea climate change expert group part ) OR ( oecd/iea climate channel experts group part ))".
• Adding a wildcard symbol may retrieve word variants: (( oecd/iea climate change expert group part ) OR ( oecd/iea climate channel experts group part ))*.