Perhaps you should try some spelling variations:
"palliative care's" » "palliativ care", "palliative cancer"
"palliative cares" » "palliative carers", "palliative carein", "palliativ care"
"palliative case" » "palliativ care", "palliative use", "palliatie care"

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: (("palliative case") OR ((("palliative cares") OR ("palliative care's")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"palliative case\") or (((\"palliative cares\") OR (\"palliative care's\"))))".
• Removing quotes may allow a broader search: (( palliative case ) or ((( palliative cares ) OR ( palliative care's )))).
• Adding a wildcard symbol may retrieve word variants: (("palliative case") or ((("palliative cares") OR ("palliative care's"))))*.