Perhaps you should try some spelling variations:
"coder coder triple frequency problem" » "coder coder triple frequency probe" (Expand search), "coder coder triple frequent problem" (Expand search), "coder coder triple frequency profiled" (Expand search), "coder coder time frequency problem" (Expand search), "coder coder variable frequency problem" (Expand search), "coder coder the frequency problem" (Expand search), "coder model triple frequency problem" (Expand search), "coder modelo triple frequency problem" (Expand search), "coder codon triplet frequency problem" (Expand search), "coder decoder triple frequency problem" (Expand search), "code code triple frequency problem" (Expand search), "decoder codec triple frequency problem" (Expand search)
"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)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder triple frequency problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder triple frequency problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder triple frequency problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder triple frequency problem") OR ("on python python python programming"))*.