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