Perhaps you should try some spelling variations:
"dat quan trinh slippers" » "dat qua trinh slippers", "dat quan tinh slippers", "dat xuan trinh slippers", "dat quang trinh slippers", "dan quan trinh slippers", "dat luan trinh slippers", "dat quan trinh slippery", "dat quan 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 quan 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 quan trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat quan trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat quan trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.