Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"luc van hung snippets" » "luc van dung snippets", "luc manh hung snippets", "luc van duong snippets", "luoc van hung snippets", "luu van hung snippets", "duc van hung snippets"

Try widening your search to All Fields.

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