Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lan trinh he snippets" » "lan trinh code snippets", "lap trinh he snippets", "dan trinh he snippets", "lan tranh he snippets", "lan trinh han snippets", "lan trinh hoa snippets", "lan 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: (((("lan 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: (((("lan trinh he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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