Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha cau toc snippets" » "phan cau toc snippets", "phap cau toc snippets", "pha cac toc snippets", "pha cao toc snippets", "pha cau hoc 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: (((("pha cau toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha cau toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha cau toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha cau toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.