Perhaps you should try some spelling variations:
"trinh phan thu slippers" » "trinh han thu slippers", "trinh quan thu slippers", "thanh phan thu slippers", "trinh phan thuc slippers", "trinh phan tu slippers", "trinh phan thi slippers", "trinh phan thu slippery", "trinh phan thu 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: (((("dung java java snippets") or ("trinh phan thu slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh phan thu slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh phan thu slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh phan thu slippers"))) or ("locating bug code snippets"))*.