Perhaps you should try some spelling variations:
"nha thuoc cuc snippets" » "nha nuoc cuc snippets", "nhan thuc cuc snippets", "nha hoc cuc snippets", "nha thuc cua snippets", "nha thuoc co snippets", "nha thuoc tu snippets"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets"
"locating bug code snippets" » "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: (((("nha thuoc cuc snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nha thuoc cuc snippets") OR ("python using sat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nha thuoc cuc snippets ) or ( python using sat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha thuoc cuc snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))*.