Perhaps you should try some spelling variations:
"dat quang trinh slippers" » "dat quang thinh slippers", "dat quang ninh slippers", "dat quang binh slippers", "dau quang trinh slippers", "dang quang trinh slippers", "chat quang trinh slippers", "dat quang trinh slippery", "dat quang 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: (((("dat quang 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: (((("dat quang trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat quang trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat quang trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.