Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xuong san de snippets" » "xuong song de snippets", "cong san de snippets", "dong san de snippets", "xuong van de snippets", "xuong dan de snippets", "xuong jan de 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: (((("xuong san de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xuong san de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xuong san de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xuong san de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.