Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi hoc code snippets" » "khi hoc co snippets", "khi hoc cong snippets", "khi hoc de snippets", "khi hoi code snippets", "khien hoc code snippets", "khoa hoc code snippets"
"locating bug core snippets" » "locating bug code snippets"

Try widening your search to All Fields.

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