Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran hoc vo snippets" » "tran hoc code snippets", "toan hoc vo snippets", "than hoc vo snippets", "trac hoc vo snippets", "tran hoc va snippets", "tran hoc co snippets", "tran hoc vi 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 ("tran hoc vo snippets"))) or ("locating bug core snippets"))~.
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