Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"co viet dat snippets" » "co viec dat snippets", "co viet da snippets", "co viet dao snippets", "so viet dat snippets", "o viet dat snippets", "hoc viet dat 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 ("co viet dat snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( co viet dat snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("co viet dat snippets"))) or ("locating bug core snippets"))*.