Perhaps you should try some spelling variations:
"qua dinh dat snippets" » "qua kinh dat snippets", "quy dinh dat snippets", "qua danh dat snippets", "qua dinh ket snippets", "qua dinh van snippets", "qua dinh lam snippets", "qua dinh dat slippers"
"using a java snippets" » "using _ java snippets", "using a java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: "((((\"qua dinh dat snippets\") OR (\"using a java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( qua dinh dat snippets ) OR ( using a java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("qua dinh dat snippets") OR ("using a java snippets"))) OR ("locating bug code snippets"))*.