Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"so vong doi snippets" » "so trong doi snippets", "so huong doi snippets", "so dung doi snippets", "so cong doi snippets", "so dong doi snippets", "so nong doi 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 ("so vong doi snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( so vong doi snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("so vong doi snippets"))) or ("locating bug core snippets"))*.