Perhaps you should try some spelling variations:
"coder segmentation _ declarative programming" » "coder segmentation _ reactive programming" (Expand search), "color segmentation _ declarative programming" (Expand search), "over segmentation _ declarative programming" (Expand search), "gender segmentation _ declarative programming" (Expand search)
"python c python python programming" » "python c pythons python programming" (Expand search), "python c piton python programming" (Expand search), "python c pitons python programming" (Expand search), "python _ python python programming" (Expand search), "python of python python programming" (Expand search), "python in 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 segmentation _ declarative programming\") OR (\"python c python python programming\"))~".
• Removing quotes may allow a broader search: (( coder segmentation _ declarative programming ) OR ( python c python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder segmentation _ declarative programming") OR ("python c python python programming"))*.