Perhaps you should try some spelling variations:
"based computation using hard problem" » "based computational using hard problem" (Expand search), "based competition using hard problem" (Expand search), "based compilation using hard problem" (Expand search), "based computations using hard problem" (Expand search), "based computation in hard problem" (Expand search), "based composition using hard problem" (Expand search), "based computation using and problem" (Expand search), "based computation using old problem" (Expand search), "based computation using hand problem" (Expand search), "based computation using har problem" (Expand search), "based computation using herd problem" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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: (("based computation using hard problem") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computation using hard problem\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( based computation using hard problem ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based computation using hard problem") OR ("using coding python python programming"))*.