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

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