Perhaps you should try some spelling variations:
"doi xuan trinh slippers" » "doi qua trinh slippers", "doi xuan dinh slippers", "doi xuan kinh slippers", "do xuan trinh slippers", "doi xua trinh slippers", "moi xuan trinh slippers", "doi xuan trinh slippery", "doi xuan 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"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("doi xuan 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: (((("doi xuan trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi xuan trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi xuan trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.