Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"men sinh hon snippets" » "den sinh hon snippets", "benh sinh hon snippets", "kien sinh hon snippets", "men sinh hoc snippets", "men minh hon snippets", "men sinh ton 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 sinh hon 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 sinh hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( men sinh hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("men sinh hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.