Perhaps you should try some spelling variations:
"tieng lieu data slippers" » "tieng viet data slippers", "tien lien data slippers", "tien tieu data slippers", "tieng lieu dao slippers", "tieng bieu dat slippers", "tieng lieu da slippers", "tieng lieu data slippery", "tieng lieu data grippers"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("dung cac code snippets") or ("tieng lieu data slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cac code snippets") OR ("tieng lieu data slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cac code snippets ) or ( tieng lieu data slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cac code snippets") or ("tieng lieu data slippers"))) or ("locating bug code snippets"))*.