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

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