Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"van hoang li snippets" » "van hoan li snippets", "quan hoang li snippets", "tran hoang li snippets", "van hoang le snippets", "van hong li snippets", "van hoang ly snippets", "van hoang li slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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