Perhaps you should try some spelling variations:
"jing zhang a snippets" » "ming zhang a snippets", "qing zhang a snippets", "ying zhang a snippets", "jing khang a snippets", "jing chang ha snippets", "jing thang ay snippets", "jing zhang a slippers"
"python using java snippets" » "python using data snippets", "python using java 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: (((("jing zhang a snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("jing zhang a snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( jing zhang a snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("jing zhang a snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.