Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"yong zhang hai slippers" » "yang zhang hai slippers", "ying zhang hai slippers", "yong zheng hai slippers", "yong hang hai slippers", "yong thanh hai slippers", "yong hoang hai slippers", "yong zhang hai slippery", "yong zhang hai grippers"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code 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: (((("using java code snippets") or ("yong zhang hai slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("yong zhang hai slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( yong zhang hai slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("yong zhang hai slippers"))) or ("locating bug code snippets"))*.