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