Perhaps you should try some spelling variations:
"vi cuong cong snippets" » "vi cuong code snippets", "vi cong cong snippets", "vi luong cong snippets", "vi duong cong snippets", "vu cuong cong snippets", "viet cuong cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java 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: (((("vi cuong cong snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( vi cuong cong snippets ) or ( using java java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi cuong cong snippets") or ("using java java snippets"))) or ("locating bug core snippets"))*.