Perhaps you should try some spelling variations:
"public private learnership" » "public private learners", "public private partnerships", "public private ownership"
"public private partnership" » "public private partnerships", "public private partieship", "public private learnership", "public private papership"
"public private partners" » "public private parties", "public private learners", "public private papers"

Try widening your search to All Fields.

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