Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung chi cho snippets" » "dung cho cho snippets", "dung thi cho snippets", "dung chien cho snippets", "dung choi cho snippets", "dung chinh cho snippets", "dung chim choc 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 (\"dung chi cho snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java snippets ) OR ( dung chi cho snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") OR ("dung chi cho snippets"))) OR ("locating bug code snippets"))*.