Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"anh qua khai snippets" » "anh qua hai snippets", "anh quang khai snippets", "anh quan hai snippets", "anh quan khai snippets", "danh qua khai snippets", "hanh qua khai snippets", "anh qua 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: (((("anh qua 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: (((("anh qua khai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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