Perhaps you should try some spelling variations:
"coder coder components allocation problem" » "coder coder component allocation problem" (Expand search), "coder coder component's association problem" (Expand search), "coder coder components selection problem" (Expand search), "coder coder components location problem" (Expand search), "coder cover components allocation problem" (Expand search), "coder model components allocation problem" (Expand search), "coder power components allocation problem" (Expand search), "coder decoder components allocation problem" (Expand search), "code code components allocation problem" (Expand search), "decoder codec components allocation 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 components allocation problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder components allocation problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder components allocation problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder components allocation problem") OR ("on python python python programming"))*.