Perhaps you should try some spelling variations:
"chat van phan snippets" » "chat va phan snippets", "chat ban phan snippets", "chat ran phan snippets", "chat van phong snippets", "chat van thanh snippets", "chat luan phan snippets", "chat van phan slippers"
"python using a snippets" » "python using a 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: (((("chat van phan snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chat van phan snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat van phan snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat van phan snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.