Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"van ngoc trac snippets" » "van ngoc trang snippets", "van ngoc tuan snippets", "van ngoc tan snippets", "tran ngoc trac snippets", "van hoc trac snippets", "van nghe trac snippets", "van ngoc trac 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java code snippets") or ("van ngoc trac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("van ngoc trac snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van ngoc trac snippets ))) or ( locating bug code snippets ))*.