Perhaps you should try some spelling variations:
"lochating bug code snippets" » "locating bug code snippets", "lochating bug core snippets"
"python using java snippets" » "python using data snippets"
"han nam cao snippets" » "hanh nam cao snippets", "nhan nam cao snippets", "hang nam cao snippets", "han nam sao snippets", "han nam giao snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("han nam cao snippets") or ("python using java snippets"))) or ("lochating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han nam cao snippets") OR ("python using java snippets"))) OR ("lochating bug code snippets")).
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