Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"mong do danh snippets" » "mong doi danh snippets", "dong do danh snippets", "mong du danh snippets", "mong do dinh snippets", "mong do sanh snippets", "mong dia danh 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 ("mong do danh snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( mong do danh snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("mong do danh snippets"))) or ("locating bug core snippets"))*.