Perhaps you should try some spelling variations:
"re communication theory" » "re communication technology", "de communication theory", "true communication theory", "une communication theory"
"jews colonization israel" » "jews communication israel", "jews colonization still", "jews colonization history", "its colonization israel", "mars colonization israel", "re colonization israel"
"re cooperation state" » "re cooperation scale", "re operation state", "re cooperation strategy", "de cooperation state", "area cooperation state", "rate cooperation state"

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: (((("jews colonization israel") or ("re communication theory"))) or ("re cooperation state"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("jews colonization israel") OR ("re communication theory"))) OR ("re cooperation state")).
• Removing quotes may allow a broader search: (((( jews colonization israel ) or ( re communication theory ))) or ( re cooperation state )).
• Adding a wildcard symbol may retrieve word variants: (((("jews colonization israel") or ("re communication theory"))) or ("re cooperation state"))*.