Perhaps you should try some spelling variations:
channel export » channel experts, channel port, channel support
rica climate » africa climate, ira climate, america climate
export group » expert group, expert groups, port group
group papers » group part
iea climate » sea climate, ira climate, area climate

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/((rica climate) OR (iea climate)) channel export group papers".
• Adding a wildcard symbol may retrieve word variants: oecd/((rica climate) OR (iea climate)) channel export group papers*.