Perhaps you should try some spelling variations:
"coder coder ofdm visual programming" » "coder coder ofdm fetal programming" (Expand search), "coder decoder ofdm visual programming" (Expand search), "code code ofdm visual programming" (Expand search), "decoder codec ofdm visual programming" (Expand search), "coder coder ordem visual programming" (Expand search), "coder coded ofdm visual programming" (Expand search), "coder coded gfdm visual programming" (Expand search), "coder modem ofdm visual programming" (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)

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 ofdm visual programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder ofdm visual programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder ofdm visual programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder ofdm visual programming") OR ("api python python python programming"))*.