Perhaps you should try some spelling variations:
"era organizations failed" » "era organizations based", "era organizations fad", "era organization failures", "meta organizations failed", "via organizations failed", "rural organizations failed"
"der organisation history" » "der organization history", "der organisation culture", "der organisation einer", "die organisation history"
"de communication sector" » "de telecommunication sector", "de telecommunications sector", "de communication series", "mobile communication sector", "online communication sector"

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: (((("era organizations failed") OR ("der organisation history"))) OR ("de communication sector"))~.
• Removing quotes may allow a broader search: (((( era organizations failed ) or ( der organisation history ))) or ( de communication sector ))~.
• Adding a wildcard symbol may retrieve word variants: (((("era organizations failed") or ("der organisation history"))) or ("de communication sector"))*.