Perhaps you should try some spelling variations:
"cua dao doanh snippets" » "cua cao doanh snippets", "cua dao danh snippets", "cua dao thanh snippets", "ca dao doanh snippets", "cua dan doanh snippets", "cua dai doanh snippets", "cua dao doanh 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 dao doanh 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 dao doanh snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua dao doanh snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua dao doanh snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.