Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using java code snippets" » "using data code snippets", "using java code slippers"
"duc tao lua snippets" » "duc tan lua snippets", "duc tho lua snippets", "duc dao lua snippets", "duc tao luan snippets", "duc bao lua snippets", "duc tro lua snippets", "duc tao lua slippers"

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 code snippets\") OR (\"duc tao lua snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java code snippets ) OR ( duc tao lua snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") OR ("duc tao lua snippets"))) OR ("locating bugs code snippets"))*.