Perhaps you should try some spelling variations:
"using java core snippets" » "using data core snippets"
"tran sach han slippers" » "tran mach han slippers", "ngan sach han slippers", "tran manh han slippers", "tran sach tham slippers", "tran sach danh slippers", "tran sach nang slippers", "tran sach han slippery", "tran sach han grippers"
"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 ("tran sach han slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( tran sach han slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("tran sach han slippers"))) or ("locating bug code snippets"))*.