Perhaps you should try some spelling variations:
"user segmentation on coding perl" » "ulcer segmentation on coding perl" (Expand search), "based segmentation on coding perl" (Expand search), "liver segmentation on coding perl" (Expand search), "user segmentation of coding perl" (Expand search), "user segmentation in coding perl" (Expand search), "user segmentation and coding perl" (Expand search), "user segmentation on codigo perl" (Expand search), "user segmentation non coding perl" (Expand search)
"python code python python programming" » "python code pythons python programming" (Expand search), "python code piton python programming" (Expand search), "python code pitons python programming" (Expand search), "python codigo python python programming" (Expand search), "python pacote 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: "((\"user segmentation on coding perl\") OR (\"python code python python programming\"))~".
• Removing quotes may allow a broader search: (( user segmentation on coding perl ) OR ( python code python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("user segmentation on coding perl") OR ("python code python python programming"))*.