Perhaps you should try some spelling variations:
"coder coding coding optimal sampling" » "coder coding coding optimal stopping" (Expand search), "coder coding coding spatial sampling" (Expand search), "coder coding coding optimal timing" (Expand search), "coder coding modeling optimal sampling" (Expand search), "coder coding finding optimal sampling" (Expand search), "coder coding solving optimal sampling" (Expand search), "coder coding decoding optimal sampling" (Expand search), "coder coding using optimal sampling" (Expand search), "coder coding canine optimal sampling" (Expand search), "modern coding coding optimal sampling" (Expand search), "color coding coding optimal sampling" (Expand search), "odor coding coding optimal sampling" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (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 coding coding optimal sampling") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding coding optimal sampling\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding coding optimal sampling ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding coding optimal sampling") OR ("_ python python python programming"))*.