Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"lang so dung snippets" » "lang son dung snippets", "lang o dung snippets", "lang co dung snippets", "lang su dung snippets", "lang hoc dung snippets", "lang noi dung 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 ("lang so dung snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( lang so dung snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("lang so dung snippets"))) or ("locating bug core snippets"))*.