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