Perhaps you should try some spelling variations:
"dan luan trinh snippets" » "dan xuan trinh snippets", "dan luan tinh snippets", "dan luan tranh snippets", "doanh luan trinh snippets", "dung luan trinh snippets", "tang luan trinh snippets"
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"
"locating bug code snippets" » "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: (((("dan luan trinh snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan luan trinh snippets") OR ("dung java java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan luan trinh snippets ) or ( dung java java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan luan trinh snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))*.