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