Perhaps you should try some spelling variations:
"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)
"coder coder in database proposal" » "coder decoder in database proposal" (Expand search), "code code in database proposal" (Expand search), "decoder codec in database proposal" (Expand search), "coder coder in databases proposal" (Expand search), "coder coder _ database proposal" (Expand search), "coder code in database proposal" (Expand search), "coder codes in database proposal" (Expand search), "coder poder in database proposal" (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 in database proposal") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder in database proposal\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder in database proposal ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder in database proposal") OR ("on python python python programming"))*.