Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"hai duong va slippers" » "dai cuong va slippers", "hai phong va slippers", "hai duong van slippers", "hai dung va slippers", "hai luong va slippers", "hai duong va slippery", "hai duong va grippers"
"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: "((((\"using java java snippets\") OR (\"hai duong va slippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( hai duong va slippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("hai duong va slippers"))) OR ("locating bug code snippets"))*.