Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han dan den snippets" » "nhan dan den snippets", "han danh den snippets", "shan dan den snippets", "han ban den snippets", "han van den snippets", "han dan dung 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 dan 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: (((("han dan den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han dan den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han dan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.