Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh tam de snippets" » "trinh tam code snippets", "trinh tai de snippets", "trinh toan de snippets", "trinh cham de snippets", "trinh dam de snippets", "trinh nam de snippets", "trinh tam ve 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: (((("trinh tam de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh tam de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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