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