Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong hai cay snippets" » "cong thai cay snippets", "cong ha cay snippets", "hoang hai cay snippets", "cong loai cay snippets", "cong chau cay snippets", "cong hai chau snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cong hai cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong hai cay snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("cong hai cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.