Perhaps you should try some spelling variations:
"mai doi canh snippets" » "mai doi code snippets", "mai doi hanh snippets", "mai boi canh snippets", "mai do canh snippets", "moi doi canh snippets", "mai hoi canh snippets", "mai khoi canh snippets"
"locating bug core snippets" » "locating bug code 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: (((("python using data snippets") or ("mai doi canh snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using data snippets") OR ("mai doi canh snippets"))) OR ("locating bug core snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("python using data snippets") or ("mai doi canh snippets"))) or ("locating bug core snippets"))*.