Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bua van den snippets" » "bui van den snippets", "qua van den snippets", "bua va den snippets", "bua van de snippets", "bua van der snippets", "bua ban den 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: (((("bua van den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bua van den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bua van den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bua van den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.