Perhaps you should try some spelling variations:
"mentalism" » "mentality", "mentales", "mentals", "mentalsm", "mentalesm", "mentalitysm"
"mentalitysm" » "mentality", "mentalites", "mentaltysm", "mentaletysm", "mentalitytysm"
"mentali" » "mental", "mentale", "mentality"

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