Perhaps you should try some spelling variations:
"experimental fields" » "experimental field", "experimental films", "experimental fires"
"experimental yield" » "experimental field", "experiments field", "experimental time"
"experimental film" » "experimental films", "experimental field", "experimental fluid"

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: (("experimental film") OR ((("experimental aspects") OR ((("experimental fields") OR ("experimental yield")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"experimental film\") or (((\"experimental aspects\") or (((\"experimental fields\") OR (\"experimental yield\"))))))".
• Removing quotes may allow a broader search: (( experimental film ) or ((( experimental aspects ) or ((( experimental fields ) OR ( experimental yield )))))).
• Adding a wildcard symbol may retrieve word variants: (("experimental film") or ((("experimental aspects") or ((("experimental fields") OR ("experimental yield"))))))*.