Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi thu tich snippets" » "phi chu tich snippets", "phi chu thich snippets", "phi thue tinh snippets", "phai thu tich snippets", "thi thu tich snippets", "phi thi tich snippets"

Try widening your search to All Fields.

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