Perhaps you should try some spelling variations:
"damaged arterial vehicles" » "damaged aerial vehicles", "damaged aethereal vehicles", "damaged arial vehicles", "damaged bacterial vehicles", "damaged material vehicles", "damaged materials vehicles"
"damaged aerial vehicle" » "damaged material vehicle", "damaged materials vehicle", "damaged bacterial vehicle", "damaged aerial vehicles"

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: "((\"damaged arterial vehicles\") OR (\"damaged aerial vehicle\"))".
• Removing quotes may allow a broader search: (( damaged arterial vehicles ) OR ( damaged aerial vehicle )).
• Adding a wildcard symbol may retrieve word variants: (("damaged arterial vehicles") OR ("damaged aerial vehicle"))*.