Perhaps you should try some spelling variations:
"cong nho trinh slippers" » "cong tho trinh slippers", "cong tho tinh slippers", "cong co trinh slippers", "cong nhoi trinh slippers", "cong cho trinh slippers", "cong nha trinh slippers", "cong nho trinh slippery", "cong nho trinh 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: (((("cong nho trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong nho trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong nho trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong nho trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.