Perhaps you should try some spelling variations:
"phan quang dat slippers" » "pham quang dat slippers", "phan quan dat slippers", "nhanh quang dat slippers", "phan quang dai slippers", "phan quang dam slippers", "phan quang phat slippers", "phan quang dat slippery", "phan quang dat 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: (((("phan quang dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan quang dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan quang dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan quang dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.