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"
"cac nhan vi snippets" » "ca nhan vi snippets", "cac nha vi snippets", "cam nhan vi snippets", "cac nhanh vi snippets", "cac nhan va snippets", "cac nhan bi snippets", "cac nhan vi slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("cac nhan vi snippets") or ("python using java snippets"))) or ("lochating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac nhan vi snippets") OR ("python using java snippets"))) OR ("lochating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac nhan vi snippets ) or ( python using java snippets ))) or ( lochating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac nhan vi snippets") or ("python using java snippets"))) or ("lochating bug code snippets"))*.