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

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