Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"cau anh so snippets" » "cau danh so snippets", "cau lanh so snippets", "cuu anh so snippets", "cau anh son snippets", "cau anh co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("cau anh so snippets") or ("python missing data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau anh so snippets") OR ("python missing data snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau anh so snippets ) or ( python missing data snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau anh so snippets") or ("python missing data snippets"))) or ("locating bug code snippets"))*.