Perhaps you should try some spelling variations:
"and computational xcode java programming" » "and computational code java programming" (Expand search), "and computational codes java programming" (Expand search), "and computational mode java programming" (Expand search), "_ computational xcode java programming" (Expand search), "and computational xcode and programming" (Expand search), "and computational xcode based programming" (Expand search), "and computational xcode goal programming" (Expand search)
"using semantic python python programming" » "using semantic path python programming" (Expand search), "using static python python programming" (Expand search), "using semantic paths python programming" (Expand search), "using semantic pythons python programming" (Expand search), "using semantic piton python programming" (Expand search), "using semantic pitons 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: "((\"and computational xcode java programming\") OR (\"using semantic python python programming\"))~".
• Removing quotes may allow a broader search: (( and computational xcode java programming ) OR ( using semantic python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and computational xcode java programming") OR ("using semantic python python programming"))*.