Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"noi quan cua snippets" » "noi quang cua snippets", "moi quan cua snippets", "nguoi quan cua snippets", "noi quan luan snippets", "noi ban cua snippets", "noi gian cua 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: (((("noi quan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("noi quan cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( noi quan cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("noi quan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.