Perhaps you should try some spelling variations:
"coder precoder machine teaching problems" » "coder precoder machine teaching problem" (Expand search), "coder precoder machine breathing problems" (Expand search), "coder precoder machine teaching process" (Expand search), "coder packer machine teaching problems" (Expand search), "coder precoder scheme teaching problems" (Expand search), "coder precoder teaching teaching problems" (Expand search), "coder precoder active teaching problems" (Expand search), "coder precoder medicine teaching problems" (Expand search), "coder decoder machine teaching 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), "manim 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 precoder machine teaching problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder machine teaching problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder machine teaching problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder machine teaching problems") OR ("api python python python programming"))*.