Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cac ket toan snippets" » "cac ket code snippets", "cac ke toan snippets", "cac ket doan snippets", "cac kiem toan snippets", "cao ket toan snippets", "cac kieu toan snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data 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: (((("cac ket toan snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac ket toan snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cac ket toan snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac ket toan snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.