Perhaps you should try some spelling variations:
"hedonico model" » "hedonismo model", "edenico model", "veronico model", "hedonico modelo"
"hedonica model" » "hedonica modelo", "hedonista model", "veronica model"
"helenica model" » "helenica modelo", "helenista model", "helena model", "elenita model"
"helenico model" » "helenico modelo", "helenismo model", "edenico model", "elenio model"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"hedonico model\") OR (((((\"hedonica model\") OR (\"helenica model\"))) OR (\"helenico model\"))))~".
• Removing quotes may allow a broader search: (( hedonico model ) OR ((((( hedonica model ) OR ( helenica model ))) OR ( helenico model ))))~.
• Adding a wildcard symbol may retrieve word variants: (("hedonico model") OR ((((("hedonica model") OR ("helenica model"))) OR ("helenico model"))))*.