Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan trac da snippets" » "toan tran da snippets", "thoan tran da snippets", "toan tap da snippets", "toan trac dia snippets", "toan tac da snippets", "toan trai dat 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: (((("toan trac da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan trac da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan trac da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan trac da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.