Perhaps you should try some spelling variations:
"pham quan trinh slippers" » "pham qua trinh slippers", "pham quan tinh slippers", "pham xuan trinh slippers", "pham quang trinh slippers", "phap quan trinh slippers", "pham luan trinh slippers", "pham quan trinh slippery", "pham 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: (((("pham 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: (((("pham quan trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham quan trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham quan trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.