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"
"duc van cho snippets" » "duc va cho snippets", "duc tan cho snippets", "duc manh cho snippets", "duc van chi snippets", "duc san cho snippets", "duc van chat snippets"

Try widening your search to All Fields.

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