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