Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"trinh co than snippets" » "trinh do than snippets", "trinh cong than snippets", "trinh hoa than snippets", "trinh co thanh snippets", "trinh con than snippets", "trinh co phan 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 ("trinh co than snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( trinh co than snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("trinh co than snippets"))) or ("locating bug core snippets"))*.