Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"luong duc do snippets" » "duong duc do snippets", "luong cuoc do snippets", "luong dich do snippets", "luong duc dao snippets", "luong duoc do snippets", "luong muc do 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 ("luong duc do snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( luong duc do snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("luong duc do snippets"))) or ("locating bug core snippets"))*.