Perhaps you should try some spelling variations:
"an introduction in java programing" » "an introduction and java programing" (Expand search), "an introduction to java programing" (Expand search), "an introduction of java programing" (Expand search), "an introduction in java programming" (Expand search), "an introduction in java programs" (Expand search), "an introduction in meta programming" (Expand search), "an introduction in japan programing" (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"an introduction in java programing\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( an introduction in java programing ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("an introduction in java programing") OR ("using coding python python programming"))*.