Perhaps you should try some spelling variations:
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"phi khi doi snippets" » "phai khi doi snippets", "phoi khi doi snippets", "phi phi doi snippets", "phi khi dai snippets", "phi khi hoi snippets", "phi khi moi 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: (((("phi khi doi snippets") or ("python using data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi khi doi snippets") OR ("python using data snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("phi khi doi snippets") or ("python using data snippets"))) or ("locating bug code snippets"))*.