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