Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dong viet a snippets" » "cong viet a snippets", "dung viet a snippets", "dang viet a snippets", "dong viet ha snippets", "dong viet ca snippets", "dong viet o 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: (((("python using java snippets") OR ("dong viet a snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dong viet a snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dong viet a snippets"))) or ("locating bug core snippets"))*.