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