Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tang duc tan snippets" » "dang duc tan snippets", "tang du tan snippets", "lang duc tan snippets", "trang duc tran snippets", "toang duc toan snippets", "thang duc than 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 ("tang duc tan snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tang duc tan snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tang duc tan snippets"))) or ("locating bug core snippets"))*.