Perhaps you should try some spelling variations:
"tan trinh java snippets" » "tan thinh java snippets", "tao trinh java snippets", "dan trinh java snippets"
"dong luc code slippers" » "nang luc code slippers", "dong lbm code slippers", "dong luc cong slippers"
"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: (((("tan trinh java snippets") OR ("dong luc code slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( tan trinh java snippets ) or ( dong luc code slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tan trinh java snippets") or ("dong luc code slippers"))) or ("locating bug code snippets"))*.