Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"von thi tran snippets" » "von thi trang snippets", "von thi thanh snippets", "von thi lan snippets", "von tai tran snippets", "vo thi tran snippets", "van thi tran snippets"

Try widening your search to All Fields.

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