Perhaps you should try some spelling variations:
"dai duong code snippets" » "dai duong co snippets", "dai duong cong snippets", "dai duong che snippets", "dai cuong code snippets", "hai duong code snippets", "dai luong code snippets", "dai duong code slippers"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets", "using raw java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs 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: "((((\"using raw java snippets\") OR (\"dai duong code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using raw java snippets ) OR ( dai duong code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using raw java snippets") OR ("dai duong code snippets"))) OR ("locating bug code snippets"))*.