Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"wang don chat snippets" » "wang dong chat snippets", "dang don chat snippets", "wang dan chat snippets", "wang doc chat snippets", "wang cong chat snippets", "wang dinh chat 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 ("wang don chat snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( wang don chat snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("wang don chat snippets"))) or ("locating bug core snippets"))*.