Perhaps you should try some spelling variations:
"don't trinh java snippets" » "don't think java snippets", "dong trinh java snippets", "don't trinh java slippers"
"dung cong dat snippets" » "dung trong dat snippets", "dung dong dat snippets", "dung cong dan snippets", "dung cong da snippets", "dung cong dat 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: (((("don't trinh java snippets") or ("dung cong dat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("don't trinh java snippets") OR ("dung cong dat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don't trinh java snippets ) or ( dung cong dat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don't trinh java snippets") or ("dung cong dat snippets"))) or ("locating bug code snippets"))*.