Perhaps you should try some spelling variations:
"trinh phan bao slippers" » "trinh han bao slippers", "trinh quan bao slippers", "thanh phan bao slippers", "trinh phan bo slippers", "trinh phan ba slippers", "trinh pham bao slippers", "trinh phan bao slippery", "trinh phan bao 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 bao 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 bao slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh phan bao slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh phan bao slippers"))) or ("locating bug code snippets"))*.