Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"trao ho minh snippets" » "trao tho minh snippets", "tao ho minh snippets", "trac ho minh snippets", "trao cho minh snippets", "trao ho manh snippets", "trao ho sinh snippets", "trao ho minh 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: (((("trao ho minh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trao ho minh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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