Perhaps you should try some spelling variations:
"advanced computational using covariant problem" » "and computational using covariant problem" (Expand search), "based computational using covariant problem" (Expand search), "advanced computation using covariant problem" (Expand search), "advanced computations using covariant problem" (Expand search), "advanced computacional usinas covariant problem" (Expand search), "advanced computational using covering problem" (Expand search), "advanced computational using covariation problem" (Expand search), "advanced computational using constant problem" (Expand search), "advanced computational using invariant problem" (Expand search), "advanced computational using invariants problem" (Expand search), "advanced computational in covariant problem" (Expand search)
"using module python python programming" » "using modulo python python programming" (Expand search), "using module method python programming" (Expand search), "using module pythons python programming" (Expand search), "using module piton python programming" (Expand search), "using module pitons python programming" (Expand search), "housing module python python programming" (Expand search), "using mobile python python programming" (Expand search), "using model python python programming" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("advanced computational using covariant problem") OR ("using module python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced computational using covariant problem\") OR (\"using module python python programming\"))*".
• Removing quotes may allow a broader search: (( advanced computational using covariant problem ) OR ( using module python python programming ))*.