Perhaps you should try some spelling variations:
"mixed-integrallldalldo linear programming" » "mixed-integralllldalldo linear programming" (Expand Search), "mixed-integradollldalldo linear programming" (Expand Search), "mixed-integradallldalldo linear programming" (Expand Search)
"mixed-integra linear programming" » "mixed-integral linear programming" (Expand Search), "mixed-integrado linear programming" (Expand Search), "mixed-integrada linear programming" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("mixed-integrallldalldo linear programming") OR ("mixed-integra linear programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mixed-integrallldalldo linear programming\") OR (\"mixed-integra linear programming\"))".
• Removing quotes may allow a broader search: (( mixed-integrallldalldo linear programming ) OR ( mixed-integra linear programming )).
• Adding a wildcard symbol may retrieve word variants: (("mixed-integrallldalldo linear programming") OR ("mixed-integra linear programming"))*.