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