Perhaps you should try some spelling variations:
"modern electron python hard problem" » "modern electric python hard problem" (Expand search), "moderno electronic python hard problem" (Expand search), "under electron python hard problem" (Expand search), "modern electron phonon hard problem" (Expand search), "modern electron photon hard problem" (Expand search), "modern electron proton hard problem" (Expand search), "modern electron python and problem" (Expand search), "modern electron python old problem" (Expand search), "modern electron python based 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), "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: (("modern electron python hard problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modern electron python hard problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( modern electron python hard problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("modern electron python hard problem") OR ("api python python python programming"))*.