Perhaps you should try some spelling variations:
"advanced computation and string problem" » "advanced computations and string problem" (Expand search), "advanced computational and string problem" (Expand search), "advance computational and string problem" (Expand search), "advanced computation of string problem" (Expand search), "advanced computation and sizing problem" (Expand search), "advanced computation and rostering problem" (Expand search), "advanced computation and sharing problems" (Expand search), "advanced computation and strong problem" (Expand search), "advanced computation and sharing problem" (Expand search), "advanced computation and staging problem" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python python python programming" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced computation and string problem\") OR (\"in python python python programming\"))~".
• Removing quotes may allow a broader search: (( advanced computation and string problem ) OR ( in python python python programming ))~.
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