Perhaps you should try some spelling variations:
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ python programming" (Expand search)
"coder in coding image segmentation" » "coder in moving image segmentation" (Expand search), "coder in decoding images segmentation" (Expand search), "coder in counting image segmentation" (Expand search), "coder in decoding image segmentation" (Expand search), "coder non coding image segmentation" (Expand search), "coder and coding image segmentation" (Expand search), "code in coding image segmentation" (Expand search), "codes in coding image segmentation" (Expand search), "poder in coding image segmentation" (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 in coding image segmentation") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder in coding image segmentation\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder in coding image segmentation ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder in coding image segmentation") OR ("on python python python programming"))*.