Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java code snippets" » "using data code snippets"
"doan van cac snippets" » "doan va cac snippets", "hoang van cac snippets", "luan van cac snippets", "doan van hac snippets", "doan van cau snippets", "doan van bac snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("doan van cac snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( doan van cac snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("doan van cac snippets"))) or ("locating bugs code snippets"))*.