Perhaps you should try some spelling variations:
"experimental fields" » "experimental field", "experimental yield", "experimental film"
"experimental facts" » "experimental aspects", "experimental facilities"
"experimental films" » "experimental film", "experimental field", "experimental forest"

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 facts") OR ("experimental fluid"))) OR ((("experimental films") OR ("experimental fields")))).
• Removing quotes may allow a broader search: (((( experimental facts ) or ( experimental fluid ))) or ((( experimental films ) or ( experimental fields )))).
• Adding a wildcard symbol may retrieve word variants: (((("experimental facts") or ("experimental fluid"))) or ((("experimental films") or ("experimental fields"))))*.