Perhaps you should try some spelling variations:
"coder _ optimization algorithm array" » "coder _ optimization algoritmos array" (Expand search), "coder _ optimization algorithm aaa" (Expand search), "coder _ optimization algorithm binary" (Expand search)
"via python python python programming" » "via pythons python python programming" (Expand search), "via piton python python programming" (Expand search), "via pitons python python programming" (Expand search), "in python python python 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: (("coder _ optimization algorithm array") OR ("via python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ optimization algorithm array\") OR (\"via python python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ optimization algorithm array ) OR ( via python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ optimization algorithm array") OR ("via python python python programming"))*.