Perhaps you should try some spelling variations:
"dung chuong v snippets" » "dung chung v snippets", "dung thuong v snippets", "dung phuong v snippets", "dung cuong v snippets", "dung thuong va snippets", "dung chuong my snippets"
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code 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 ("dung chuong v snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dung chuong v snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dung chuong v snippets"))) or ("locating bug core snippets"))*.