Perhaps you should try some spelling variations:
"_ collaboration technological report series" » "_ collaboration technologies report series", "_ collaboration technologique report series", "_ collaboration technology report series", "_ collaboration technological reform series", "_ collaboration technological support series", "_ collaborative technological report series", "_ collaboration technological report server"
"_ conservation technological report series" » "_ conservation ecological report series", "_ conservation technologies report series", "_ preservation technological report series", "_ conservation technological reform series", "_ conservation technological support series", "_ conservation technological report server"
"_ operation technical report series" » "_ operations technical report series", "_ iteration technical report series", "_ operative technical report series", "_ operation technical report server", "_ operating technical 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: (((("_ conservation technological report series") OR ("_ collaboration technological report series"))) OR ("_ operation technical report series")).
• Removing quotes may allow a broader search: (((( _ conservation technological report series ) or ( _ collaboration technological report series ))) or ( _ operation technical report series )).
• Adding a wildcard symbol may retrieve word variants: (((("_ conservation technological report series") or ("_ collaboration technological report series"))) or ("_ operation technical report series"))*.