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