Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tro va do snippets" » "tao va do snippets", "tho va do snippets", "tro ba do snippets", "tro va dao snippets", "tro va doc snippets", "tro va 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: (((("tro va 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: (((("tro va do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tro va do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tro va do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.