Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"doi cau chap snippets" » "doi cau cham snippets", "doi cau chan snippets", "doi cau phap snippets", "doi dau chap snippets", "di cau chap snippets", "doi ca chap snippets"
"locating bug core snippets" » "locating bug code snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("doi cau chap snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( doi cau chap snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("doi cau chap snippets"))) or ("locating bug core snippets"))*.