Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"lan dan hoat snippets" » "lan van hoa snippets", "lan dan hoc snippets", "lan danh hoa snippets", "ban dan hoat snippets", "van dan hoat snippets", "lan dau hoat 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 ("lan dan hoat snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( lan dan hoat snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("lan dan hoat snippets"))) or ("locating bug core snippets"))*.