Perhaps you should try some spelling variations:
"trong phap trac slippers" » "trong phat trac slippers", "trong thap trac slippers", "trong nha trac slippers", "trong phan trac slippers", "trong phap truoc slippers", "trong tap trac slippers", "trong phap trac slippery", "trong phap trac 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: (((("trong phap trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong phap trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong phap trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong phap trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.