Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang danh di snippets" » "tang dan di snippets", "yang danh di snippets", "nang danh di snippets", "tang danh du snippets", "tang xanh di snippets", "tang 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: (((("tang 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: (((("tang danh di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang danh di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang danh di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.