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