Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"thi lan thoi snippets" » "thi ban thoi snippets", "thi lam thoi snippets", "thi lan thom snippets", "thi hanh thoi snippets", "thi nang thoi snippets", "thi lien thoi snippets", "thi lan thoi 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 lan thoi 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 lan thoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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