Perhaps you should try some spelling variations:
"doanh cua hoi snippets" » "doanh luan hoi snippets", "doanh cua moi snippets"
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets"
"locating bug code snippets" » "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: (((("doanh cua hoi snippets") or ("python using raw snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doanh cua hoi snippets") OR ("python using raw snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doanh cua hoi snippets ) or ( python using raw snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doanh cua hoi snippets") or ("python using raw snippets"))) or ("locating bug code snippets"))*.