Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung ngay do snippets" » "dung ngan do snippets", "dung nga do snippets", "dung nhan do snippets", "dung ngay doc snippets", "dung ngay de snippets", "dung ngay moi 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: (((("dung ngay do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ngay do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ngay do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ngay do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.