Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau noi con snippets" » "cau noi con snippets", "dang noi con snippets", "dau cuoi con snippets", "dau noi cong snippets", "dau nuoi con snippets", "dau noi co 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: (((("dau noi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau noi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau noi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau noi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.