Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tran doan mat snippets" » "trang doan mat snippets", "tan doan mat snippets", "tran hoan mat snippets", "tran doan mai snippets", "tran doanh bat snippets", "tran doan manh 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 doan mat snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tran doan mat snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tran doan mat snippets"))) or ("locating bug core snippets"))*.