Perhaps you should try some spelling variations:
"coder computational costas array problem" » "coder computational cost array problem" (Expand search), "coder computational codes array problem" (Expand search), "coder computational contents array problem" (Expand search), "code computational costas array problem" (Expand search), "poder computacional costas array problem" (Expand search), "model computational costas array problem" (Expand search), "coder computational costas leray problem" (Expand search), "coder computational costas parity problem" (Expand search), "coder computational costas ana problem" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa 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 computational costas array problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder computational costas array problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder computational costas array problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder computational costas array problem") OR ("api python python python programming"))*.