Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"nhan do 5 snippets" » "nhan dot 5 snippets", "nhan mo 5 snippets", "nhan co 5 snippets", "nhan do _ snippets", "nhan do 4 snippets", "nhan do o snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan do 5 snippets") OR ("python missing data snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( nhan do 5 snippets ) or ( python missing data snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("nhan do 5 snippets") or ("python missing data snippets"))) or ("locating bug core snippets"))*.