Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc long soc snippets" » "duc cong soc snippets", "duc dong soc snippets", "duc hong soc snippets", "duc lon soc snippets", "duc luong suc snippets", "duc cong so 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 long soc 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 long soc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc long soc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc long soc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.