Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"men hoi nhap snippets" » "men hoi dap snippets", "men moi nhat snippets", "me hoi nhap snippets", "men khoa nhap snippets", "man hoai nhap snippets", "men hoi nhap slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("men hoi nhap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("men hoi nhap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( men hoi nhap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("men hoi nhap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.