Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java cac snippets" » "using data cac snippets", "using java can snippets", "using va cac snippets"
"dan dung cong snippets" » "dan dung trong snippets", "van dung cong snippets", "tin dung cong snippets", "ap dung cong 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 cac snippets") OR ("dan dung cong snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java cac snippets ) or ( dan dung cong snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java cac snippets") or ("dan dung cong snippets"))) or ("locating bugs code snippets"))*.