Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"than van hau snippets" » "thanh van hau snippets", "tran van hau snippets", "phan van hau snippets", "than van ha snippets", "than van hai snippets", "than van dau snippets", "than van hau 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: (((("python using java snippets") or ("than van hau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("than van hau snippets"))) OR ("locating bug code snippets")).
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