Perhaps you should try some spelling variations:
"coder coder pit optimization problem" » "coder coder pit optimization problems" (Expand search), "coder coder profit optimization problem" (Expand search), "coder coder time optimization problem" (Expand search), "coder coder cost optimization problem" (Expand search), "coder decoder pit optimization problem" (Expand search), "code code pit optimization problem" (Expand search), "decoder codec pit optimization 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 coder pit optimization problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder pit optimization problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder pit optimization problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder pit optimization problem") OR ("api python python python programming"))*.