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