Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat anh hoa snippets" » "nhat hanh hoa snippets", "nhat minh hoa snippets", "nhat ban hoa snippets", "nhat anh khoa snippets", "nhat danh hoa 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: (((("nhat anh hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat anh hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat anh hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat anh hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.