Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"ca quan khai snippets" » "ca quang khai snippets", "ca quan hai snippets", "ca qua khai snippets", "cao quan khai snippets", "cua quan khai snippets", "cai quan khai snippets", "ca quan khai 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: (((("ca quan khai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ca quan khai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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