Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java core snippets" » "using data core snippets"
"dung hoc can snippets" » "dong hoc can snippets", "dung thuoc can snippets", "trung hoc can snippets", "dung hoc dan snippets", "dung hoc cao snippets", "dung hoc cac 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 core snippets") OR ("dung hoc can snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( dung hoc can snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("dung hoc can snippets"))) or ("locating bugs code snippets"))*.