Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh doat hon snippets" » "anh dat hon snippets", "dinh doat hon snippets", "anh dong hon snippets", "anh dua hon snippets", "anh hoat ho snippets", "anh luat 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: (((("anh doat 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: (((("anh doat hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh doat hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh doat hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.