Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong thi ca snippets" » "duong thi ca snippets", "dang thi ca snippets", "dong tai ca snippets", "dong thi cam snippets", "dong thi cua snippets", "dong thi cai snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 java java snippets\") OR (\"dong thi ca snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java snippets ) OR ( dong thi ca snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") OR ("dong thi ca snippets"))) OR ("locating bug code snippets"))*.