Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tich danh da snippets" » "lich danh da snippets", "tich dinh da snippets", "tich nganh da snippets", "tich danh dau snippets", "tich dan da snippets", "tich danh ca 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: (((("tich danh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tich danh da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tich danh da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tich danh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.