Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phi van du snippets" » "phi van code snippets", "phi san du snippets", "thi van du snippets", "phi va du snippets", "phi van duy snippets", "phi van dau snippets", "phi van de snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phi van du 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 van du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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