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