Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"trac hoc phi snippets" » "toan hoc phi snippets", "thai hoc phi snippets", "toc hoc phi snippets", "trac hoc pho snippets", "trac hoc chi snippets", "trac hoc khi snippets"

Try widening your search to All Fields.

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