Perhaps you should try some spelling variations:
"vos communications series" » "vos communication series", "vos communications services", "vos communication services", "vs communications series", "laos communications series", "do communications series"
"nets communication united" » "nets telecommunication united", "lea's communication united", "mass communication united", "c's communication united"
"its cooperation history" » "its corporation history", "its federation history", "city cooperation history", "et cooperation history"

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

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