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