Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoa can phe snippets" » "khoa cam phe snippets", "khoa cap phe snippets", "khoi can phe snippets", "khoa ca phe snippets", "khoa can nghe 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 can phe 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 can phe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoa can phe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa can phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.