Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"men cong hoa snippets" » "mem cong hoa snippets", "den cong hoa snippets", "len cong hoa snippets", "men dong hoa snippets", "men dong hoc snippets", "men hang 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: (((("men cong 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: (((("men cong hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( men cong hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("men cong hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.