Perhaps you should try some spelling variations:
"coder coding based channel modeling" » "coder coding based channel coding" (Expand search), "coder coding based channel model" (Expand search), "coder coding based change modeling" (Expand search), "coder coding and channel modeling" (Expand search), "coder coding blind channel modeling" (Expand search), "modern coding based channel modeling" (Expand search), "color coding based channel modeling" (Expand search), "odor coding based channel modeling" (Expand search), "coder coating based channel modeling" (Expand search), "coder modeling based channel modeling" (Expand search), "coder reading based channel modeling" (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 coding based channel modeling") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding based channel modeling\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding based channel modeling ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding based channel modeling") OR ("api python python python programming"))*.