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