Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"cau de cai snippets" » "cau de code snippets", "cau den cai snippets", "cau do cai snippets", "cuu de cai snippets", "cau de tai snippets", "cau ve cai 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: (((("python missing data snippets") or ("cau de cai snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python missing data snippets") OR ("cau de cai snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python missing data snippets ) or ( cau de cai snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python missing data snippets") or ("cau de cai snippets"))) or ("locating bug core snippets"))*.