Perhaps you should try some spelling variations:
"lochating bug code snippets" » "locating bug code snippets", "lochating bug code slippers", "lochating bug core snippets"
"python using java snippets" » "python using data snippets", "python using java slippers"
"va cao thuc snippets" » "va cao thuoc snippets", "va bao thuc snippets", "va can thuc snippets", "va cac thuc snippets", "va co thuc snippets", "va dao thuc snippets", "va cao thuc slippers"

Try widening your search to All Fields.

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