Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"men tong cua snippets" » "xen tong cua snippets", "ben trong cua snippets", "jen tzong cua snippets", "men thong cua snippets", "men trong cua snippets", "men tuong cua 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: (((("men tong cua 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 tong cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( men tong cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("men tong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.