Perhaps you should try some spelling variations:
"python using real snippets" » "python using metal snippets", "python using raw snippets", "python using real slippers"
"phan lan dat snippets" » "phan lap dat snippets", "phan van dat snippets", "phan loai dat snippets", "phan dan dat snippets", "phan ban dat snippets", "phan lan dat slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("phan lan dat snippets") or ("python using real snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan lan dat snippets") OR ("python using real snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan lan dat snippets ) or ( python using real snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan lan dat snippets") or ("python using real snippets"))) or ("locating bug code snippets"))*.