Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using java snippets" » "python using data snippets"
"tran tuan va snippets" » "tran xuan va snippets", "tran quang va snippets", "tran thanh va snippets", "tran toan va snippets", "tran luan va snippets", "tran quan va snippets"

Try widening your search to All Fields.

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