Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai tan don snippets" » "hai van don snippets", "hai quan don snippets", "hai tan doan snippets", "hai tin don snippets", "hai tan son 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: (((("hai tan don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai tan don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai tan don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai tan don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.