Tal vez debería intentar con algunas variantes ortográficas:
"european federalization of national organisations working with the homeless." » "europea centralizacion of national organisations working with the homeless." (Expander búsqueda), "european federalization of nations organization working with the homeless." (Expander búsqueda), "european federalization of regional organizations working with the homeless." (Expander búsqueda), "european federalization of national transitions working with the homeless." (Expander búsqueda)