Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java code snippets" » "using data code snippets"
"van ngoc hoc snippets" » "tran ngoc hoc snippets", "van hoc hoc snippets", "van nghe hoc snippets", "van ngoc hoa snippets", "van ngoc hoi snippets", "van ngoc hoat 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 ("van ngoc hoc snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van ngoc hoc snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("van ngoc hoc snippets"))) or ("locating bugs code snippets"))*.