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