Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cao va toan snippets" » "cao va code snippets", "cao van toan snippets", "cao bai toan snippets", "cao tap toan snippets", "tao va toan snippets", "co va 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: (((("cao va 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: (((("cao va toan snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cao va toan snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao va toan snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.