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