Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"luan hoc lua snippets" » "luan hoan lua snippets", "quang hoc lua snippets", "luan khoa lua snippets", "luan hoc luan snippets", "luan hoc luat snippets", "luan hoc cua 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 ("luan hoc lua snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("luan hoc lua snippets"))) OR ("locating bug core snippets")).
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