Perhaps you should try some spelling variations:
"trinh chat dang slippers" » "tinh chat dang slippers", "trinh luat dang slippers", "trinh han dang slippers", "trinh chan dang slippers", "trinh chat quang slippers", "trinh cao dang slippers", "trinh chat dang slippery", "trinh chat dang 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: (((("dung java java snippets") or ("trinh chat dang slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh chat dang slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh chat dang slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh chat dang slippers"))) or ("locating bug code snippets"))*.