Perhaps you should try some spelling variations:
"dong trinh java snippets" » "cong trinh java snippets", "dong tinh java snippets", "dong tranh java snippets", "dong trinh java slippers"
"dung tinh ky snippets" » "dang tinh ky snippets", "dung ninh ky snippets", "dung tin ky snippets", "dung trinh ky snippets", "dung kinh ky snippets", "dung minh ky snippets", "dung tinh ky slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 tinh ky snippets") or ("dong trinh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tinh ky snippets") OR ("dong trinh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tinh ky snippets ) or ( dong trinh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tinh ky snippets") or ("dong trinh java snippets"))) or ("locating bug code snippets"))*.