Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don den con snippets" » "don dien con snippets", "dan den con snippets", "don dep con snippets", "don den cong snippets", "don den coi snippets", "don den son snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("don den con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("don den con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don den con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don den con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.