Perhaps you should try some spelling variations:
"dung trinh java snippets" » "dung tinh java snippets", "dong trinh java snippets", "cong trinh java snippets", "dung trinh java slippers"
"duong dao code snippets" » "dong dao code snippets", "luong dao code snippets", "truong dao code snippets", "duong dao code slippers", "duong dao core snippets"
"locating bug code snippets" » "locating bug code slippers", "locating bug core snippets", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung trinh java snippets") or ("duong dao code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung trinh java snippets") OR ("duong dao code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung trinh java snippets ) or ( duong dao code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung trinh java snippets") or ("duong dao code snippets"))) or ("locating bug code snippets"))*.