Perhaps you should try some spelling variations:
"criticsm" » "criticism", "criticsim", "criticum", "criticismm"
"criticam" » "critica", "criticae", "criticism"
"critics" » "criticism"
"criticas" » "critica", "criticism", "critic"

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