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