Perhaps you should try some spelling variations:
"son thanh phi snippets" » "ban thanh phi snippets", "van thanh phi snippets", "son thanh pho snippets", "son thanh phan snippets", "son thanh pham snippets", "son thanh phi 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: (((("son thanh phi snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son thanh phi snippets") OR ("python using sat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son thanh phi snippets ) or ( python using sat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son thanh phi snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))*.