Perhaps you should try some spelling variations:
"coder precoder _ java programming" » "coder precoder _ and programming" (Expand search), "coder precoder _ based programming" (Expand search), "coder precoder _ goal programming" (Expand search), "coder decoder _ java programming" (Expand search)
"pci with python python programming" » "pci with pythons python programming" (Expand search), "pci with piton python programming" (Expand search), "pci with pitons python programming" (Expand search), "pi with python python programming" (Expand search), "loci with python python programming" (Expand search), "ii with python python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder precoder _ java programming") OR ("pci with python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder _ java programming\") OR (\"pci with python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder _ java programming ) OR ( pci with python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder _ java programming") OR ("pci with python python programming"))*.