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