Perhaps you should try some spelling variations:
"_ colonization israel" » "_ communication israel", "_ colonization still", "_ colonization history", "_ decolonization israel", "decolonization _ israel"
"pro colonization islam" » "pro decolonization islam", "pro colonization history", "bio colonization islam", "re colonization islam", "mars colonization islam"
"arab operation state" » "arab operations state", "arab operation stage", "arab cooperation state", "arab population state", "adb operations state"

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: "((\"pro colonization islam\") OR (((\"arab operation state\") OR (\"_ colonization israel\"))))~".
• Removing quotes may allow a broader search: (( pro colonization islam ) OR ((( arab operation state ) OR ( _ colonization israel ))))~.
• Adding a wildcard symbol may retrieve word variants: (("pro colonization islam") OR ((("arab operation state") OR ("_ colonization israel"))))*.