Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"cho hoc len snippets" » "co hoc len snippets", "khoa hoc len snippets", "cho hoc le snippets", "cho hoc hien snippets", "cho hoc luan snippets", "cho hoc len slippers"

Try widening your search to All Fields.

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