Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"yu zhang cac snippets" » "yu zhang code snippets", "yu hang cac snippets", "yu hang ca snippets", "yu thong cac snippets", "you zhang cac snippets", "yuan zhang cac snippets"
"python using java snippets" » "python using data 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 ("yu zhang cac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("yu zhang cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( yu zhang cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("yu zhang cac snippets"))) or ("locating bug core snippets"))*.