Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat thu do snippets" » "dat phu do snippets", "sat thuc do snippets", "dat tieu do snippets", "dat thuy do snippets", "dat khu do snippets", "dat tu do 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: (((("dat thu 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: (((("dat thu do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat thu do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat thu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.