Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"linh dan den snippets" » "binh dan den snippets", "hinh dan den snippets", "minh danh den snippets", "linh ban den snippets", "linh van den snippets", "linh dan dung 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: (((("linh dan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("linh dan den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( linh dan den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("linh dan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.