Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi dung thu snippets" » "phoi dung thu snippets", "thi dung thu snippets", "phi hung thu snippets", "phi ung thu snippets", "phi dung phu snippets", "phi dung thi snippets"

Try widening your search to All Fields.

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