Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"chun hoc lua snippets" » "chung hoc lua snippets", "chun ho lua snippets", "chuan hoa lua snippets", "chun hoc luan snippets", "chun hoc luat snippets", "chun hoc cua snippets"

Try widening your search to All Fields.

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