Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tac thuoc 30 snippets" » "tao thuoc 30 snippets", "truc thuoc 30 snippets", "tac thuong 30 snippets", "tac thuoc ma snippets", "tac thuoc va snippets", "tac thuoc bo snippets", "tac thuoc 30 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: (((("tac thuoc 30 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac thuoc 30 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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