Perhaps you should try some spelling variations:
"trong trinh van slippers" » "trong tinh van slippers", "trang trinh van slippers", "trong thinh van slippers", "trong trinh han slippers", "trong trinh quan slippers", "trong trinh toan slippers", "trong trinh van slippery", "trong trinh van 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 trinh van 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 trinh van slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong trinh van slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong trinh van slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.