Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"van anh tao snippets" » "van thanh tao snippets", "van minh tao snippets", "tuan anh tao snippets", "van anh tho snippets", "van anh ta snippets", "van anh tai snippets", "van anh tao slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs 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 ("van anh tao snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van anh tao snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("van anh tao snippets"))) or ("locating bug code snippets"))*.