Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"thu duc phan snippets" » "thu dung phan snippets", "thu duc thang snippets", "thu duc phung snippets", "thu tuc phan snippets", "tho duc phan snippets", "thu muc phan snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("thu duc phan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu duc phan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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