Perhaps you should try some spelling variations:
"can khach code snippets" » "can khach cong snippets", "van khanh code snippets", "vay khach code snippets", "cua khach code snippets", "can khach code 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"

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: (((("can khach code snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can khach code snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can khach code snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
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