Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"cong cot nhat snippets" » "tong cot nhat snippets", "cong co nhat snippets", "cong coc nhat snippets", "cong cot hat snippets", "cong tot nhat snippets", "cong cong nhat 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 ("cong cot nhat snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( cong cot nhat snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("cong cot nhat snippets"))) or ("locating bug core snippets"))*.