Perhaps you should try some spelling variations:
"coder and objective algorithm based" » "coder and objective algorithms based" (Expand search), "coder and multiobjective algorithm based" (Expand search), "coder and competitive algorithm based" (Expand search), "coder and objective algorithm and" (Expand search), "coder and subjective algorithm based" (Expand search), "coder and object algorithm based" (Expand search), "code and objective algorithm based" (Expand search), "codes and objective algorithm based" (Expand search), "poder and objective algorithm based" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("coder and objective algorithm based") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and objective algorithm based\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder and objective algorithm based ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder and objective algorithm based") OR ("_ python python python programming"))*.