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