Perhaps you should try some spelling variations:
"flood management concepts." » "flood management contracts.", "land management concepts.", "fund management concepts."
"demand management concepts." » "demand management contracts.", "land management concepts.", "debt management concepts."
"cash management centers." » "cash management controls.", "cash management control.", "cash management water.", "asset management centers."
"oxford management review." » "reform management review.", "records management review.", "fund management review."
"farm management reform." » "bank management reform.", "data management reform.", "forest management reform."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("oxford management review.") or ((("farm management reform.") or ("cash management centers."))))) or ((("flood management concepts.") or ("demand management concepts."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("oxford management review.") OR ((("farm management reform.") OR ("cash management centers."))))) OR ((("flood management concepts.") OR ("demand management concepts.")))).
• Removing quotes may allow a broader search: (((( oxford management review. ) or ((( farm management reform. ) or ( cash management centers. ))))) or ((( flood management concepts. ) or ( demand management concepts. )))).
• Adding a wildcard symbol may retrieve word variants: (((("oxford management review.") or ((("farm management reform.") or ("cash management centers."))))) or ((("flood management concepts.") or ("demand management concepts."))))*.