Perhaps you should try some spelling variations:
"nang dua trinh slippers" » "nang qua trinh slippers", "nang xuan trinh slippers", "nang quy trinh slippers", "nang du trinh slippers", "nang suat trinh slippers", "nang quan trinh slippers", "nang dua trinh slippery", "nang dua 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: (((("nang dua 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: (((("nang dua trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang dua trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang dua trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.