Perhaps you should try some spelling variations:
"_ colonization history" » "_ communication history", "_ organization history", "_ cooperation history", "_ decolonization history", "decolonization _ history"
"war decolonization islam" » "war decolonization from", "war decolonization _", "war decolonisation from", "_ decolonization islam", "box decolonization islam", "1945 decolonization islam"
"re colonization israel" » "re communication israel", "re colonization still", "pro colonization israel", "jews colonization israel", "mars colonization israel"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("war decolonization islam") or ("re colonization israel"))) or ("_ colonization history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("war decolonization islam") OR ("re colonization israel"))) OR ("_ colonization history"))*.
• Removing quotes may allow a broader search: (((( war decolonization islam ) or ( re colonization israel ))) or ( _ colonization history ))*.