Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dat hoc dung snippets" » "dat hoc ung snippets", "dat hoc dan snippets", "dat hoc cong snippets", "dai hoc dung snippets", "vat hoc dung snippets", "dan hoc dung 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 ("dat hoc dung snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dat hoc dung snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dat hoc dung snippets"))) or ("locating bug core snippets"))*.