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