Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung tran quy snippets" » "dung tren quy snippets", "hung tran quy snippets", "dang tran quy snippets", "dung tran duy snippets", "dung tran quoc snippets", "dung tran thuy 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 ("dung tran quy snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dung tran quy snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dung tran quy snippets"))) or ("locating bug core snippets"))*.