Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung tru den snippets" » "dung tri den snippets", "dung thu den snippets", "dung tu den snippets", "dung tru benh snippets", "dung thuy 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: (((("dung tru 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: (((("dung tru den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tru den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tru den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.