Perhaps you should try some spelling variations:
"automatic data detection systems" » "automatic data detection system", "automatic dna detection systems", "automatic data detecting systems", "automatic data protection systems"
"automation data detection systems" » "automation data detection system", "automating data detection systems", "automated data detection systems", "automation der detection systems", "automation dna detection systems", "automation data detecting systems", "automation data protection systems"

Try widening your search to All Fields.

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"automatic data detection systems\") OR (\"automation data detection systems\"))".
• Removing quotes may allow a broader search: (( automatic data detection systems ) OR ( automation data detection systems )).
• Adding a wildcard symbol may retrieve word variants: (("automatic data detection systems") OR ("automation data detection systems"))*.