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