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