Perhaps you should try some spelling variations:
"coder code mixing data preprocessing" » "coder code mixing data processing" (Expand search), "coder code merging data preprocessing" (Expand search), "coder code mapping data preprocessing" (Expand search), "coder code mixing rate preprocessing" (Expand search), "coder code mixing at preprocessing" (Expand search), "coder code mixing ratio preprocessing" (Expand search), "code code mixing data preprocessing" (Expand search), "modern code mixing data preprocessing" (Expand search), "color code mixing data preprocessing" (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.

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