Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoa hoi cuc snippets" » "khoan hoi cuc snippets", "khoa hoc cuc snippets", "khoa doi cuc snippets", "khoa hoi chuc snippets", "khoa hoi suc snippets", "khoa hoi cua 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: (((("khoa hoi cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa hoi cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("khoa hoi cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.