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

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