Perhaps you should try some spelling variations:
"thong quang de snippets" » "thong quan de snippets", "thong qua de snippets", "luong quang de snippets", "thong quang le snippets", "thong quang d snippets", "thong quang do snippets"
"dung java java slippery" » "dung va java slippery", "dung java java slippers"
"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 slippery\") OR (\"thong quang de snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java slippery ) OR ( thong quang de snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java slippery") OR ("thong quang de snippets"))) OR ("locating bug code snippets"))*.