Perhaps you should try some spelling variations:
"coder coder boolean graphical programming" » "coder coder boolean fractional programming" (Expand search), "coder coder boolean graphical processing" (Expand search), "coder coder boolean pascal programming" (Expand search), "coder coder between graphical programming" (Expand search), "coder model boolean graphical programming" (Expand search), "coder decoder boolean graphical programming" (Expand search), "code code boolean graphical programming" (Expand search), "decoder codec boolean graphical programming" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ 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 coder boolean graphical programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder boolean graphical programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder boolean graphical programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder boolean graphical programming") OR ("on python python python programming"))*.