Try the following searches in Oskicat to find books. Replace [country] with the name of the country you are researching.
"medical policy" AND [country]
"medical care" AND [country]
"public health" AND [country]
"world health" AND [country]
ProQuest Ebook Central is a database of eBooks on many topics. Try the following search, replacing [country] with your country of interest:
(healthcare OR "health care" OR "health systems") AND [country]
You may wish to limit by date (eg, only last few years)