Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dao cac dung snippets" » "dao cach dung snippets", "dao cac duong snippets", "dao tac dung snippets", "do cac dung snippets", "sao cac dung snippets", "tao cac dung snippets"

Try widening your search to All Fields.

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