Perhaps you should try some spelling variations:
"using java core snippets" » "using data core snippets"
"cuu dan lieu snippets" » "cuu da lieu snippets", "cuu dan dieu snippets", "cuu dang dieu snippets", "cuu danh lieu snippets", "cuu van lieu snippets", "cua dan lieu snippets"
"locating bug code snippets" » "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 core snippets") OR ("cuu dan lieu snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( cuu dan lieu snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("cuu dan lieu snippets"))) or ("locating bug code snippets"))*.