Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"
"cong hai data slippers" » "cong thai data slippers", "cong ha data slippers", "hoang hai data slippers", "cong cai dat slippers", "cong a data slippers", "cong hoi dat slippers", "cong hai data slippery", "cong hai data grippers"

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 hai data slippers") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong hai data slippers") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( cong hai data slippers ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hai data slippers") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.