Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai danh led snippets" » "dai dang led snippets", "dao danh led snippets", "day danh led snippets", "dai danh lien snippets", "dai den led snippets", "dai dinh le 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 led 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 led snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai danh led snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai danh led snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.