Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan doc cho snippets" » "phan doc code snippets", "phan duoc cho snippets", "phan duc cho snippets", "than doc cho snippets", "phan dac cho snippets", "phan hoc cho snippets", "phan doc cao 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: (((("phan doc cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan doc cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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