Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"phan cua hoc snippets" » "nhan cua hoc snippets", "than cua hoc snippets", "phat cua hoc snippets", "phan cua hoi snippets", "phan cua thuoc snippets", "phan cua nuoc 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 ("phan cua hoc snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( phan cua hoc snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("phan cua hoc snippets"))) or ("locating bug core snippets"))*.