Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh phap de snippets" » "dinh phap de snippets", "ban phap de snippets", "danh nhan de snippets", "danh phap ke snippets", "danh phap ve snippets", "danh phap dien 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: (((("danh phap de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh phap de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh phap de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh phap de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.