Perhaps you should try some spelling variations:
"re communication history" » "re telecommunication history", "re communication sector", "re communication theory", "de communication history", "true communication history", "une communication history"
"coca colonization history" » "coca organization history", "coca civilization history", "coca urbanization history", "mrsa colonization history", "africa colonization history", "human colonization history"
"area cooperation history" » "area corporation history", "area federation history", "asian cooperation history", "border cooperation history", "china cooperation history"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("coca colonization history") or ((("re communication history") or ("area cooperation history"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("coca colonization history") OR ((("re communication history") OR ("area cooperation history")))).
• Removing quotes may allow a broader search: (( coca colonization history ) or ((( re communication history ) or ( area cooperation history )))).
• Adding a wildcard symbol may retrieve word variants: (("coca colonization history") or ((("re communication history") or ("area cooperation history"))))*.