Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu do toc snippets" » "thuy do toc snippets", "khu do toc snippets", "tu do toc snippets", "thu co toc snippets", "thu do tuc snippets", "thu ho toc 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: (((("thu do 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: (((("thu do toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu do toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu do toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.