Perhaps you should try some spelling variations:
"dung sinh java snippets" » "duong sinh java snippets", "dang sinh java snippets", "dung ninh java snippets", "dung trinh java snippets", "dung using java snippets", "dung sinh va snippets"
"dung dung code snippets" » "duong dung code snippets", "ung dung code snippets", "dung ung code snippets", "dung dung cong snippets", "dung dung co snippets", "dung dung de snippets"
"locating bug core snippets" » "locating bug code snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dung sinh java snippets\") OR (\"dung dung code snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( dung sinh java snippets ) OR ( dung dung code snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung sinh java snippets") OR ("dung dung code snippets"))) OR ("locating bug core snippets"))*.