Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"hung tu viet snippets" » "chung tu viet snippets", "hung thu viet snippets", "huong tu viet snippets", "hung su viet snippets", "hung te viet snippets", "hung nu viet 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 ("hung tu viet snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( hung tu viet snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("hung tu viet snippets"))) or ("locating bug core snippets"))*.