Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung hoat ho snippets" » "dung hoa ho snippets", "dung hoai ho snippets", "dung h.a.t ho snippets", "dung hoat doi snippets", "dung doat hon 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 hoat ho 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 hoat ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung hoat ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hoat ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.