Perhaps you should try some spelling variations:
"grid optimization python python programming" » "grid optimization method python programming" (Expand search), "grid optimization option python programming" (Expand search), "grid optimization methods python programming" (Expand search), "hybrid optimization python python programming" (Expand search), "period optimization python python programming" (Expand search), "and optimization python python programming" (Expand search), "grid optimization pythons python programming" (Expand search), "grid optimization piton python programming" (Expand search), "grid optimization pitons python programming" (Expand search)
"coder functions java learning objects" » "power functions java learning objects" (Expand search), "order functions java learning objects" (Expand search), "colour functions java learning objects" (Expand search), "coder functions data learning objects" (Expand search), "coder functions and learning objects" (Expand search), "coder functions are learning objects" (Expand search), "coder functions meta learning objects" (Expand search), "coder functions via learning objects" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder functions java learning objects\") OR (\"grid optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( coder functions java learning objects ) OR ( grid optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder functions java learning objects") OR ("grid optimization python python programming"))*.