Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den dong con snippets" » "dien dong con snippets", "dan dong con snippets", "de dong con snippets", "den dong cong snippets", "den dong cuon snippets", "den dong co 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: (((("den dong 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: (((("den dong con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den dong con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den dong con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.