Perhaps you should try some spelling variations:
"mars communication theory" » "mars communication technology", "mass communication theory", "mass communications theory", "markets communication theory"
"re organization history" » "re organization theory", "re organisation history", "care organization history", "free organization history"
"mars cooperation scale" » "mars cooperation case", "mars cooperation state", "mars cooperation sara", "early cooperation scale", "area cooperation scale", "arab cooperation scale"

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: (((("re organization history") OR ("mars cooperation scale"))) OR ("mars communication theory"))~.
• Removing quotes may allow a broader search: (((( re organization history ) or ( mars cooperation scale ))) or ( mars communication theory ))~.
• Adding a wildcard symbol may retrieve word variants: (((("re organization history") or ("mars cooperation scale"))) or ("mars communication theory"))*.