Perhaps you should try some spelling variations:
"phan trong code snippets" » "pham trong code snippets", "nhan trong code snippets", "phan tong code snippets", "phan trong cong snippets", "phan trong co snippets", "phan trong che snippets"
"locating bug core snippets" » "locating bug code snippets"
"using a java snippets" » "using _ java 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 a java snippets") OR ("phan trong code snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using a java snippets ) or ( phan trong code snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using a java snippets") or ("phan trong code snippets"))) or ("locating bug core snippets"))*.