Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"vuong si trac snippets" » "vuong thi trac snippets", "truong si trac snippets", "vuong chi trac snippets", "vuong li trac snippets", "vuong vi trac snippets", "vuong sinh trac snippets", "vuong si 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("vuong si trac snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( vuong si trac snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("vuong si trac snippets"))) or ("locating bug code snippets"))*.