Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"den cac thoi snippets" » "den cac toi snippets", "den cac hop snippets", "den cac tro snippets", "dien cac thoi snippets", "dan cac thoi snippets", "de cac thoi 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: (((("using java code snippets") OR ("den cac thoi snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( den cac thoi snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("den cac thoi snippets"))) or ("locating bug core snippets"))*.