Perhaps you should try some spelling variations:
"quang vinh trac slippers" » "quang ninh trac slippers", "quang binh trac slippers", "quang minh trac slippers", "quang sinh trac slippers", "quang vinh tran slippers", "quang anh trac slippers", "quang vinh trac slippery", "quang vinh trac 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: (((("quang vinh trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quang vinh trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang vinh trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang vinh trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.