Perhaps you should try some spelling variations:
"criticsl" » "critics", "criticsm", "criticism"
"critical" » "criticsl"
"critica" » "critics"
"criticala" » "criticsla", "criticaland", "critically", "criticalto"

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: (("critical" OR "criticsl") OR ("critica" OR "criticala")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"critical\" OR \"criticsl\") or (\"critica\" or \"criticala\"))".
• Removing quotes may allow a broader search: (( critical OR criticsl ) or ( critica or criticala )).
• Adding a wildcard symbol may retrieve word variants: (("critical" OR "criticsl") or ("critica" or "criticala"))*.