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

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 ("critica" OR ("criticsa" OR ("criticala" OR "critically"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(\"critical\" or (\"critica\" or (\"criticsa\" or (\"criticala\" OR \"critically\"))))*".
• Removing quotes may allow a broader search: ( critical or ( critica or ( criticsa or ( criticala OR critically ))))*.