Perhaps you should try some spelling variations:
"pham van dac snippets" » "pham van dao snippets", "pham van dau snippets", "pham van hac snippets", "phan van dac snippets", "pham van dac slippers"
"python using a snippets" » "python using a 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.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("pham van dac snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham van dac snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
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