Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"chu thi tran snippets" » "chu thi trang snippets", "chu thi thanh snippets", "chu thi lan snippets", "chuc thi tran snippets", "cau thi tran snippets", "chu thich 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 ("chu thi tran snippets"))) or ("locating bug core snippets"))~.
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