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