Perhaps you should try some spelling variations:
"python using code snippets" » "python using cfd snippets", "python using one snippets"
"ap dung doi snippets" » "ap huong doi snippets", "ap dung tai snippets", "ap dung co snippets", "xay dung doi snippets", "van dung doi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("ap dung doi snippets") or ("python using code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ap dung doi snippets") OR ("python using code snippets"))) OR ("locating bug code snippets")).
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