Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"dan tu ha snippets" » "danh tu ha snippets", "dan su ha snippets", "ban tu ha snippets", "dan tu hat snippets", "dan tu va snippets", "dan vu ha snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dan tu ha snippets") or ("python missing data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan tu ha snippets") OR ("python missing data snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( dan tu ha snippets ) or ( python missing data snippets ))) or ( locating bug core snippets ))*.