Perhaps you should try some spelling variations:
"destruction technologies" » "construction technologies", "detection technologies", "disruption technologies"
"extraction technologies" » "interaction technologies", "extraction technology", "generation technologies"

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: "((\"destruction technologies\") OR (\"extraction technologies\"))".
• Removing quotes may allow a broader search: (( destruction technologies ) OR ( extraction technologies )).
• Adding a wildcard symbol may retrieve word variants: (("destruction technologies") OR ("extraction technologies"))*.