Perhaps you should try some spelling variations:
"phat xuan trinh slippers" » "phat qua trinh slippers", "phat xuan dinh slippers", "phat xuan kinh slippers", "pham xuan trinh slippers", "phan xuan trinh slippers", "phat quan trinh slippers", "phat xuan trinh slippery", "phat 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"

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: (((("phat 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: (((("phat xuan trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phat xuan trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phat xuan trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.