Perhaps you should try some spelling variations:
"tieu dung dat snippets" » "dieu duong dat snippets", "tin dung dat snippets", "viet dung dat snippets", "tieu dung va snippets", "tieu dung tai snippets", "tieu dung dat slippers"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets", "python using sat slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("tieu dung dat snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tieu dung dat snippets") OR ("python using sat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu dung dat snippets ) or ( python using sat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu dung dat snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))*.