Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang viet ha slippers" » "nang viet ha slippers", "danh viet ha slippers", "mang viet ha slippers", "dang viet nam slippers", "dang viet ha slippery", "dang viet ha grippers"
"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: (((("dang viet ha slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang viet ha slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang viet ha slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang viet ha slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.