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