Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"thi van muon snippets" » "thi ban muon snippets", "thi van muoi snippets", "thi van duong snippets", "thi lan muon snippets", "thi hanh muon snippets", "thi nang muon snippets", "thi van muon 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: (((("thi van muon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi van muon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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