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