Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tri ban tran snippets" » "tri ban trang snippets", "tri tan tran snippets", "tri ban than snippets", "tai ban tran snippets", "tri van tran snippets", "tri benh 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 ("tri ban tran snippets"))) or ("locating bug core snippets"))~.
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