Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc cao toc snippets" » "hoc cao toc snippets", "do cao toc snippets", "doc dao toc snippets", "doc cac toc snippets", "doc cao hoc snippets", "doc cao ngoc 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: (((("doc cao 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: (((("doc cao toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc cao toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc cao toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.