Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tran hoan toc snippets" » "tran hoang toc snippets", "tuan hoan toc snippets", "tran doan toc snippets", "tran hoa toc snippets", "tran hoang tuc snippets", "tran dan toc 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 ("tran hoan toc snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tran hoan toc snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tran hoan toc snippets"))) or ("locating bug core snippets"))*.