Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan va bo snippets" » "doan va bo snippets", "tran van bo snippets", "toan ban bo snippets", "toan va bao snippets", "toan va co snippets", "toan va 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: (((("toan va bo 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 va bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan va bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan va bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.