Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dau tren lua snippets" » "dau tien lua snippets", "dat tren lua snippets", "dau tieng lua snippets", "dau ten lua snippets", "dau trong lua snippets", "dau tren dia snippets"

Try widening your search to All Fields.

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