Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe danh di snippets" » "nghe dan di snippets", "nghe sinh di snippets", "nghe san di snippets", "nghe danh du snippets", "nghe xanh di snippets", "nghe danh dien 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: (((("nghe danh di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nghe danh di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe danh di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe danh di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.