Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung phong li snippets" » "dung phuong li snippets", "duong phong li snippets", "rung phong li snippets", "dung hong li snippets", "dung phong le snippets", "dung chong li 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 phong li snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dung phong li snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dung phong li snippets"))) or ("locating bug core snippets"))*.