Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat tren do snippets" » "dat trong do snippets", "dua tren do snippets", "dat tren doi snippets", "dat trien do snippets", "dat tren co 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 tren 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 tren do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat tren do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat tren do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.