Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"ban ham tran snippets" » "ban pham tran snippets", "ban ha tran snippets", "ban pham tuan snippets", "ba ham tran snippets", "ban hang tran snippets", "ban hanh 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 ("ban ham tran snippets"))) or ("locating bug core snippets"))~.
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