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