Perhaps you should try some spelling variations:
"true communication history" » "true telecommunication history", "true communication sector", "true communication theory", "truth communication history", "time communication history", "stroke communication history"
"la cooperation history" » "la corporation history", "la federation history", "2 cooperation history", "gulf cooperation history", "area cooperation history"
"lea's organization theory" » "learning organization theory", "women's organizations theory"

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

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