Perhaps you should try some spelling variations:
"trinh chao tang slippers" » "trinh chat tang slippers", "trinh han tang slippers", "trinh co tang slippers", "trinh cao tang slippers", "trinh chao yang slippers", "trinh cho tang slippers", "trinh chao tang slippery", "trinh chao tang 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 chao tang 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 chao tang slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh chao tang slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh chao tang slippers"))) or ("locating bug code snippets"))*.