Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi quan sat snippets" » "thi quan sat snippets", "phap quan sat snippets", "phan quan sat snippets", "phi quan ha snippets", "phi quan tai snippets", "phi luan san snippets"

Try widening your search to All Fields.

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