Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"gioi cua duc snippets" » "gioi qua duc snippets", "gioi chau duc snippets", "nguoi cua duc snippets", "gioi cua tuc snippets", "gioi cua nuoc snippets", "gioi cua quoc snippets", "gioi cua duc 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: (((("gioi cua duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gioi cua duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("gioi cua duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.