Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"von thi trac snippets" » "von thi tran snippets", "von thi tac snippets", "von thi trang snippets", "von tai trac snippets", "vo thi trac snippets", "van thi trac 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 ("von thi trac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("von thi trac snippets"))) OR ("locating bug core snippets")).
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