Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"danh tao duc snippets" » "doanh tai duc snippets", "danh giao duc snippets", "dao tao duc snippets", "danh tao duoc snippets", "danh dao duc snippets", "danh tho duc 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 ("danh tao duc snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( danh tao duc snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("danh tao duc snippets"))) or ("locating bug core snippets"))*.