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