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