Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung dieu d snippets" » "duong dieu d snippets", "dang dieu d snippets", "dung hieu d snippets", "dung diem d snippets", "dung dieu _ snippets", "dung dieu y 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 dieu d 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 dieu d snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dieu d snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dieu d snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.