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