Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"ca tran hung snippets" » "ca tran hong snippets", "ca tran quang snippets", "ca tran hoang snippets", "ha tran hung snippets", "ca tra hung snippets", "ca tren hung snippets"

Try widening your search to All Fields.

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