Perhaps you should try some spelling variations:
"and optimization python python programming" » "and optimization method python programming" (Expand search), "and optimization option python programming" (Expand search), "and optimization methods python programming" (Expand search), "and optimization pythons python programming" (Expand search), "and optimization piton python programming" (Expand search), "and optimization pitons python programming" (Expand search)
"coder solution and loading problems" » "coder solution and loading problem" (Expand search), "coder solution and reading problems" (Expand search), "coder solution and coding problems" (Expand search), "code solution and loading problems" (Expand search), "powder solution and loading problems" (Expand search), "copper solution and loading problems" (Expand search), "coder evolution and loading problems" (Expand search), "coder solution _ loading problems" (Expand search), "coder solution and leading problems" (Expand search), "coder solution and unloading problems" (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: (("coder solution and loading problems") OR ("and optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder solution and loading problems\") OR (\"and optimization python python programming\"))".
• Removing quotes may allow a broader search: (( coder solution and loading problems ) OR ( and optimization python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder solution and loading problems") OR ("and optimization python python programming"))*.