Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java code snippets" » "using data code snippets"
"cong viet cd snippets" » "cong viec cd snippets", "thong viet cd snippets", "nang viet cd snippets", "cong viet co snippets", "cong viet ca snippets", "cong viet cho 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 viet cd snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( cong viet cd snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("cong viet cd snippets"))) or ("locating bugs code snippets"))*.