Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tran hai thu snippets" » "tran bai thu snippets", "tran chau thu snippets", "tran nhat thu snippets", "tran hoai thu snippets", "tran hai thuy snippets", "tran phai thu 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 hai thu snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tran hai thu snippets"))) OR ("locating bug core snippets")).
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