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"
"da cua thu snippets" » "da cua chu snippets", "da ca thu snippets", "da cua tu snippets", "dai cua thu snippets", "day cua thu snippets", "dan cua thu snippets", "da cua thu slippers"

Try widening your search to All Fields.

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