Perhaps you should try some spelling variations:
"nhung van trinh slippers" » "phung van trinh slippers", "nhung bai trinh slippers", "nhung cau trinh slippers", "nhung van thinh slippers", "nhung van tinh slippers", "nhung dan trinh slippers", "nhung van trinh slippery", "nhung van 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: (((("nhung van 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: (((("nhung van trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung van trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung van trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.