Perhaps you should try some spelling variations:
"_ corporation technical report series" » "_ operation technical report series", "_ corporation ethical report series", "_ corporation technological report series"
"_ corporation technical report server" » "_ operation technical report server", "_ corporation ethical report server", "_ corporation technological report server"
"_ corporate technical report series" » "_ corpora technical report series", "_ corporate ethical report series", "_ corporate techno report series"

Try widening your search to All Fields.

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