Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han lon ve snippets" » "han tong ve snippets", "hai long ve snippets", "phan lan ve snippets", "han long ve snippets", "han lon va snippets", "han lon vi 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: (((("han lon ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han lon ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han lon ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han lon ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.