Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi lan hung snippets" » "phi van hung snippets", "phi luan chung snippets", "phi lan phuong snippets", "phi luan hung snippets", "phi san hung snippets", "thi lan hung snippets"

Try widening your search to All Fields.

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