Perhaps you should try some spelling variations:
"demand management functions." » "demand management operations.", "demand management practices.", "demand management education."
"land management concepts." » "land management contracts."
"debt management contract." » "debt management contracts."
"waste management facility." » "waste management capacity."
"asset management control." » "asset management contracts."
"waste management quality." » "waste management capacity."
"chain management case." » "chain management a."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((((("chain management case.") or ((("waste management facility.") OR ("waste management quality."))))) or ((("asset management control.") or ("demand management functions."))))) or ((("cash management issues.") or ("debt management contract."))))) or ("land management concepts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((("chain management case.") OR ((("waste management facility.") OR ("waste management quality."))))) OR ((("asset management control.") OR ("demand management functions."))))) OR ((("cash management issues.") OR ("debt management contract."))))) OR ("land management concepts."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"chain management case.\") or (((\"waste management facility.\") OR (\"waste management quality.\"))))) or (((\"asset management control.\") or (\"demand management functions.\"))))) or (((\"cash management issues.\") or (\"debt management contract.\"))))) or (\"land management concepts.\"))*".
• Removing quotes may allow a broader search: (((((((( chain management case. ) or ((( waste management facility. ) OR ( waste management quality. ))))) or ((( asset management control. ) or ( demand management functions. ))))) or ((( cash management issues. ) or ( debt management contract. ))))) or ( land management concepts. ))*.