Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc con le snippets" » "duc cong le snippets", "duc ton le snippets", "duc cuong le snippets", "duc hon le snippets", "duc son le snippets", "duc con de 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 con le 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 con le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc con le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc con le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.