Perhaps you should try some spelling variations:
"pham dac trinh slippers" » "pham dac tinh slippers", "pham dan trinh slippers", "pham doc trinh slippers", "pham duc trinh slippers", "pham dang trinh slippers", "pham sach trinh slippers", "pham dac trinh slippery", "pham dac 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 dac 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 dac trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham dac trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham dac trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.