Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"duc dan dat snippets" » "duoc dan dat snippets", "duc tan dat snippets", "duc dai dat snippets", "duc dung dat snippets", "duc dong dat snippets", "duc dinh dat 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 ("duc dan dat snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( duc dan dat snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("duc dan dat snippets"))) or ("locating bug core snippets"))*.