Perhaps you should try some spelling variations:
"international credit aviation organization" » "international credit action organizations", "international trade aviation organization", "international criminal aviation organization", "international edition aviation organization"
"international student aviation organization" » "international student action organizations", "international students aviation organization", "international student edition organization"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("international credit aviation organization") OR ("international student aviation organization"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"international credit aviation organization\") OR (\"international student aviation organization\"))".
• Removing quotes may allow a broader search: (( international credit aviation organization ) OR ( international student aviation organization )).
• Adding a wildcard symbol may retrieve word variants: (("international credit aviation organization") OR ("international student aviation organization"))*.