Perhaps you should try some spelling variations:
"_ corporation technical report server" » "_ corporation ethical report server", "_ corporation technological report server", "_ collaboration technical report server"
"_ operation technical report server" » "_ operations technical report server", "_ iteration technical report server", "_ operative technical report server", "_ operating technical report server"

Try widening your search to All Fields.

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"_ corporation technical report server\") OR (\"_ operation technical report server\"))".
• Removing quotes may allow a broader search: (( _ corporation technical report server ) OR ( _ operation technical report server )).
• Adding a wildcard symbol may retrieve word variants: (("_ corporation technical report server") OR ("_ operation technical report server"))*.