Perhaps you should try some spelling variations:
"internal displaced people" » "internal displacement people", "internally dispalced people", "internal diseases people", "internal disabled people"
"internally displaced people" » "internally disabled people"

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: "((\"internally displaced people\") OR (\"internal displaced people\"))".
• Removing quotes may allow a broader search: (( internally displaced people ) OR ( internal displaced people )).
• Adding a wildcard symbol may retrieve word variants: (("internally displaced people") OR ("internal displaced people"))*.