Perhaps you should try some spelling variations:
"city management protocols." » "city management process.", "city management projects.", "city management practices.", "data management protocols.", "case management protocols.", "crop management protocols."
"city management controls." » "city management contract.", "city management functions.", "data management controls.", "case management controls.", "crop management controls."
"farm management entity." » "farm management energy.", "farm management activity.", "farm management quality.", "bank management entity.", "data management entity.", "forest management entity."
"reform management control." » "firm management control."
"cash management concepts." » "asset management concepts."
"city management tools." » "data management tools.", "case management tools.", "crop management tools."
"fire management contracts." » "side management contracts.", "case management contracts.", "zone management contracts."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("farm management entity.") or ("cash management concepts."))) or ((("reform management control.") or ((((("city management controls.") OR ("city management protocols."))) or ("city management tools."))))))) or ("fire management contracts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("farm management entity.") OR ("cash management concepts."))) OR ((("reform management control.") OR ((((("city management controls.") OR ("city management protocols."))) OR ("city management tools."))))))) OR ("fire management contracts.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"farm management entity.\") or (\"cash management concepts.\"))) or (((\"reform management control.\") or (((((\"city management controls.\") OR (\"city management protocols.\"))) or (\"city management tools.\"))))))) or (\"fire management contracts.\"))".
• Removing quotes may allow a broader search: (((((( farm management entity. ) or ( cash management concepts. ))) or ((( reform management control. ) or ((((( city management controls. ) OR ( city management protocols. ))) or ( city management tools. ))))))) or ( fire management contracts. )).
• Adding a wildcard symbol may retrieve word variants: (((((("farm management entity.") or ("cash management concepts."))) or ((("reform management control.") or ((((("city management controls.") OR ("city management protocols."))) or ("city management tools."))))))) or ("fire management contracts."))*.