Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tran mach han snippets" » "tran manh han snippets", "trinh mach han snippets", "trong mach han snippets", "tran mach phan snippets", "tran sach han snippets", "tran cach hoan 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 ("tran mach han snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tran mach han snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tran mach han snippets"))) or ("locating bug core snippets"))*.