Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"cong trinh code snippets" » "cong trinh cong snippets", "cong trinh co snippets", "cong trinh cad snippets", "cong trinh code slippers"
"dung vi data snippets" » "dung va data snippets", "dung viet data snippets", "dung tai data snippets", "dung big data snippets", "dung aid data snippets", "dung vi data slippers"

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