Perhaps you should try some spelling variations:
"thu hoc cong snippets" » "thu hoc code snippets", "thu hoc co snippets", "thu cac cong snippets", "thu hoc dung snippets", "tu hoc cong snippets", "thu hoi cong snippets", "tru hoc cong 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.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using data snippets") or ("thu hoc cong snippets"))) or ("locating bug core snippets"))~.
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