Perhaps you should try some spelling variations:
"sale agrarian studies." » "sale migration studies.", "sale asian studies.", "sale american studies.", "yale agrarian studies.", "states agrarian studies."
"small agrarian studies." » "small migration studies.", "small asian studies.", "small american studies.", "yale agrarian studies."
"safe urban studies." » "shape urban studies.", "space urban studies.", "age urban studies."

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: (((("sale agrarian studies.") OR ("small agrarian studies."))) OR ("safe urban studies."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"sale agrarian studies.\") OR (\"small agrarian studies.\"))) or (\"safe urban studies.\"))~".
• Removing quotes may allow a broader search: (((( sale agrarian studies. ) OR ( small agrarian studies. ))) or ( safe urban studies. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sale agrarian studies.") OR ("small agrarian studies."))) or ("safe urban studies."))*.