Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trong tan hoc snippets" » "trong tan code snippets", "trong san hoc snippets", "trong quan hoc snippets", "trong cac hoc snippets", "trong toan hoc snippets", "trong than hoc snippets", "trong van hoc snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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