Perhaps you should try some spelling variations:
"_ colonization history" » "_ communication history", "_ organization history", "_ cooperation history", "_ decolonization history", "decolonization _ history"
"world federation history" » "world migration history", "road federation history", "world education history"
"jews organization theory" » "news organization theory", "lea's organization theory", "news organisations theory"

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: "((\"jews organization theory\") OR (((\"_ colonization history\") OR (\"world federation history\"))))~".
• Removing quotes may allow a broader search: (( jews organization theory ) OR ((( _ colonization history ) OR ( world federation history ))))~.
• Adding a wildcard symbol may retrieve word variants: (("jews organization theory") OR ((("_ colonization history") OR ("world federation history"))))*.