Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung nam mot snippets" » "dong nam mot snippets", "dung lam mot snippets", "sung nam mot snippets", "dung nam moc snippets", "dung nam mo 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 nam mot 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 nam mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nam mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nam mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.