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