Perhaps you should try some spelling variations:
"international environmental agreements" » "international environmental management", "international environmental asessment", "international environmental assessment", "internacional environmental agreements", "internacionales environmental agreements"
"international environmental movement" » "international environmental management", "international environmental asessment", "internacional environmental movement", "internacionales environmental movement"

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

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