Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van ma di snippets" » "van man di snippets", "van mao di snippets", "van ha di snippets", "van pa di snippets", "van da di snippets", "van mo di 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: (((("van ma di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van ma di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van ma di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van ma di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.