Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc than one snippets" » "duc thang one snippets", "duc thanh one snippets", "duc thuan one snippets", "duc than uong snippets", "duc than o snippets", "duc when one 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: (((("duc than one snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc than one snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc than one snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc than one snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.