Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"quang tran he snippets" » "quang tuan he snippets", "quang trung he snippets", "quang thanh he snippets", "quang toan he snippets", "quang tran hien snippets", "quang tran hiep 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 ("quang tran he snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( quang tran he snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("quang tran he snippets"))) or ("locating bug core snippets"))*.