Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung day hoa snippets" » "dung dat hoa snippets", "dung dan hoa snippets", "dung may hoa snippets", "dung day hoc snippets", "dung dai hoa snippets", "dung danh 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: (((("dung day 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: (((("dung day hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung day hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung day hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.