Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"mang cua moi snippets" » "mang cua code snippets", "manh cua moi snippets", "dung cua moi snippets", "ban cua moi snippets", "mang cua mot snippets", "mang cua hoi snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data 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: (((("mang cua moi snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mang cua moi snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( mang cua moi snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mang cua moi snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.