Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"luan danh dat slippers" » "luan thanh dat slippers", "luan van dat slippers", "luan nang dat slippers", "luan danh bat slippers", "luan dinh dat slippers", "luan dan dat slippers", "luan danh dat slippery", "luan danh dat grippers"
"dung java java snippets" » "dung va java 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: (((("luan danh dat slippers") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan danh dat slippers") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( luan danh dat slippers ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan danh dat slippers") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.