Perhaps you should try some spelling variations:
"international joint aviation organization" » "international journal aviation organization", "international patient aviation organization", "international issn aviation organization"
"international joint action organizations" » "international journal action organizations", "international patient action organizations", "international issn action organizations", "international cost action organizations"

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: "((\"international joint aviation organization\") OR (\"international joint action organizations\"))~".
• Removing quotes may allow a broader search: (( international joint aviation organization ) OR ( international joint action organizations ))~.
• Adding a wildcard symbol may retrieve word variants: (("international joint aviation organization") OR ("international joint action organizations"))*.