Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan moi cho snippets" » "toan roi cho snippets", "toan noi cho snippets", "toan toi cho snippets", "toan moi co snippets", "toan hoi cho snippets", "toan mo cho 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 moi cho 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 moi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan moi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan moi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.