Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung cac son snippets" » "dung cac code snippets", "luong cac son snippets", "dung cho son snippets", "dung tai son snippets", "dung cac mon snippets", "dung cao son snippets", "dung bac son snippets"
"python using java snippets" » "python using data 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 ("dung cac son snippets"))) or ("locating bug core snippets"))~.
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