Perhaps you should try some spelling variations:
"pro colonization history" » "pro communication history", "pro organization history", "pro cooperation history", "bio colonization history", "re colonization history", "mars colonization history"
"its decolonization islam" » "its decolonization _", "its colonization israel", "its decolonisation from", "its colonization islam", "_ decolonization islam", "box decolonization islam"
"its decolonization from" » "its decolonisation from", "its decolonization africa", "its decolonization across", "its colonization from", "_ decolonization from", "box decolonization from"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("pro colonization history") OR ((("its decolonization islam") OR ("its decolonization from"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"pro colonization history\") or (((\"its decolonization islam\") OR (\"its decolonization from\"))))~".
• Removing quotes may allow a broader search: (( pro colonization history ) or ((( its decolonization islam ) OR ( its decolonization from ))))~.
• Adding a wildcard symbol may retrieve word variants: (("pro colonization history") or ((("its decolonization islam") OR ("its decolonization from"))))*.