Perhaps you should try some spelling variations:
"public health" » "publicae health" (Expand Search)
"rpublicii health" » "rpublicaeii health" (Expand Search)
"republic health" » "republicae health" (Expand Search), "republica health" (Expand Search), "republik health" (Expand Search)
"republicii health" » "republicaeii health" (Expand Search), "republicaii health" (Expand Search), "republikii health" (Expand Search), "republica health" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("public health") OR ((((("rpublicii health") OR ("republic health"))) OR ("republicii health"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"public health\") OR (((((\"rpublicii health\") OR (\"republic health\"))) OR (\"republicii health\"))))".
• Removing quotes may allow a broader search: (( public health ) OR ((((( rpublicii health ) OR ( republic health ))) OR ( republicii health )))).
• Adding a wildcard symbol may retrieve word variants: (("public health") OR ((((("rpublicii health") OR ("republic health"))) OR ("republicii health"))))*.