Perhaps you should try some spelling variations:
"trien thi dan snippets" » "trieu thi dan snippets", "tren thi dan snippets", "trien chi dan snippets", "trien thi doan snippets", "trien thi lan snippets", "trien thi dai snippets", "trien thi dan 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 ("trien thi dan snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a snippets") OR ("trien thi dan snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( trien thi dan snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("trien thi dan snippets"))) or ("locating bug code snippets"))*.