Perhaps you should try some spelling variations:
communication history » telecommunication history, communication sector, communication theory
colonization history » organization history, cooperation history, civilization history
decolonization notes » decolonization models, decolonization case, decolonization indonesia
1945 decolonization » _ decolonization, 4.4 decolonisation, box decolonization
re colonization » pro colonization, _ colonization, jews colonization

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( _ communication history ) or ( re colonization history ))) or ( 1945 decolonization notes ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( _ communication history ) OR ( re colonization history ))) OR ( 1945 decolonization notes )).
• Adding a wildcard symbol may retrieve word variants: (((( _ communication history ) or ( re colonization history ))) or ( 1945 decolonization notes ))*.