Perhaps you should try some spelling variations:
"Micro and nano technologies sensors" » "Micro and nano technologies sensor", "Micro and nano technology sensors", "Micro and nano technologies second", "Micro and nanotechnologies _ sensors"
"Micro and nano technologies serious" » "Micro and nano technologies services", "Micro and nano methodologies serious", "Micro and nano technologies second", "Micro and nanotechnologies _ serious", "Micro and nano technology serious"

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: "((\"Micro and nano technologies serious\") OR (\"Micro and nano technologies sensors\"))".
• Removing quotes may allow a broader search: (( Micro and nano technologies serious ) OR ( Micro and nano technologies sensors )).
• Adding a wildcard symbol may retrieve word variants: (("Micro and nano technologies serious") OR ("Micro and nano technologies sensors"))*.