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