Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java code snippets" » "using data code snippets"
"tran vinh he snippets" » "tran dinh he snippets", "tran minh he snippets", "tran van he snippets", "tran hinh he snippets", "tran tinh he snippets", "tran vinh ha 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 ("tran vinh he snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tran vinh he snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tran vinh he snippets"))) or ("locating bugs code snippets"))*.