Perhaps you should try some spelling variations:
"coder _ sampling java programming" » "coder _ sampling and programming" (Expand search), "coder _ sampling based programming" (Expand search), "coder _ sampling goal programming" (Expand search), "coder _ sampling data programming" (Expand search), "coder _ sampling gaps programming" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ 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 _ sampling java programming\") OR (\"in python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder _ sampling java programming ) OR ( in python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder _ sampling java programming") OR ("in python python python programming"))*.