Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vong doi hoc snippets" » "vong doi code snippets", "trong doi hoc snippets", "huong doi hoc snippets", "dung doi hoc snippets", "vong doi hoac snippets", "vong dai hoc snippets", "vong hoi hoc snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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