Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"lang set chat snippets" » "lang viet chat snippets", "lang son chat snippets", "lang ven chat snippets", "lang sat chat snippets", "lang soat chat snippets", "lang suat chat 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 (\"lang set chat snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java snippets ) OR ( lang set chat snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") OR ("lang set chat snippets"))) OR ("locating bug code snippets"))*.