Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"pho dam lan snippets" » "pho tam lan snippets", "pho da lan snippets", "pho nam lan snippets", "pho dam van snippets", "pho dam phan snippets", "pho pham lan snippets", "pho dam lan slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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