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