Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chi trinh he snippets" » "chi trinh code snippets", "thi trinh he snippets", "chi minh he snippets", "chi binh he snippets", "chi trinh han snippets", "chi trinh hoa snippets", "chi trinh ky 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: (((("chi trinh he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi trinh he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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