Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho noi co snippets" » "cho moi co snippets", "cho doi co snippets", "che noi co snippets", "cho noi cho snippets", "cho noi bo 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: (((("cho noi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho noi co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho noi co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho noi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.