Perhaps you should try some spelling variations:
"pdi of python python programming" » "pdi of pythons python programming" (Expand search), "pdi of piton python programming" (Expand search), "pdi of pitons python programming" (Expand search), "pdi _ python python programming" (Expand search), "pdi in python python programming" (Expand search), "hdi of python python programming" (Expand search)
"coder coding using java computer" » "modern coding using java computer" (Expand search), "color coding using java computer" (Expand search), "odor coding using java computer" (Expand search), "coder modeling using java computer" (Expand search), "coder drying using java computer" (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: "((\"coder coding using java computer\") OR (\"pdi of python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding using java computer ) OR ( pdi of python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding using java computer") OR ("pdi of python python programming"))*.