Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi ve co snippets" » "hoi ve co snippets", "khoi de co snippets", "khoi he co snippets", "khoi vo co snippets", "khoi va co 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: (((("khoi ve co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi ve co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi ve co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi ve co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.