Perhaps you should try some spelling variations:
"christianity and mothers religious -- islam." » "christianity and motherhood religious -- islam.", "christianity and inter religious -- islam.", "christianity and after religious -- islam."
"christianity and other relations -- islam." » "christianity and other delegations -- islam.", "christianity and other reflections -- islam.", "christianity and better relations -- islam."
"christianity and other religious -- islam." » "christianity and inter religious -- islam.", "christianity and other regions -- islam.", "christianity and ethno religious -- islam."
"christianity and other religions -- islam." » "christianity and other religion -- islam.", "christianity and other regions -- islam."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("christianity and other religions -- islam.") or ("christianity and other relations -- islam."))) or ((("christianity and other religious -- islam.") OR ("christianity and mothers religious -- islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("christianity and other religions -- islam.") OR ("christianity and other relations -- islam."))) OR ((("christianity and other religious -- islam.") OR ("christianity and mothers religious -- islam.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"christianity and other religions -- islam.\") or (\"christianity and other relations -- islam.\"))) or (((\"christianity and other religious -- islam.\") OR (\"christianity and mothers religious -- islam.\"))))".
• Removing quotes may allow a broader search: (((( christianity and other religions -- islam. ) or ( christianity and other relations -- islam. ))) or ((( christianity and other religious -- islam. ) OR ( christianity and mothers religious -- islam. )))).
• Adding a wildcard symbol may retrieve word variants: (((("christianity and other religions -- islam.") or ("christianity and other relations -- islam."))) or ((("christianity and other religious -- islam.") OR ("christianity and mothers religious -- islam."))))*.