Perhaps you should try some spelling variations:
"trinh tren thi slippers" » "trinh truyen thi slippers", "trinh tuyen thi slippers", "trinh tieng thi slippers", "trinh trien thi slippers", "trinh tran thi slippers", "trinh trieu thi slippers", "trinh tren thi slippery", "trinh tren thi 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 tren thi 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 tren thi slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh tren thi slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh tren thi slippers"))) or ("locating bug code snippets"))*.