Perhaps you should try some spelling variations:
"dan trinh code snippets" » "dan trinh cong snippets", "dan trinh co snippets", "dan trinh cad snippets", "dan tinh code snippets", "van trinh code snippets", "hanh trinh code snippets", "dan trinh code slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("python using a snippets") or ("dan trinh code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a snippets") OR ("dan trinh code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( dan trinh code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("dan trinh code snippets"))) or ("locating bug code snippets"))*.