Perhaps you should try some spelling variations:
"advanced computation in shell program" » "advanced computations in shell program" (Expand search), "advanced computational in shell program" (Expand search), "advance computational in shell program" (Expand search), "advanced computation and shell program" (Expand search), "advanced computation of shell program" (Expand search), "advanced imputation in shell program" (Expand search), "advanced computation in scholl program" (Expand search), "advanced computation in seal program" (Expand search), "advanced computation in cell program" (Expand search), "advanced computation in sheep program" (Expand search), "advanced computation _ shell program" (Expand search)
"using tools python python programming" » "using tools pythons python programming" (Expand search), "using tools piton python programming" (Expand search), "using tools pitons python programming" (Expand search), "using tool python python programming" (Expand search), "using tools person python programming" (Expand search), "cutting tools python python programming" (Expand search), "testing tools python python programming" (Expand search), "mining tools python python programming" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced computation in shell program\") OR (\"using tools python python programming\"))~".
• Removing quotes may allow a broader search: (( advanced computation in shell program ) OR ( using tools python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced computation in shell program") OR ("using tools python python programming"))*.