Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi don ca snippets" » "khoi dong ca snippets", "khoi lon ca snippets", "hoi dan ca snippets", "khoi dan ca snippets", "khoi don va snippets", "khoi don ha 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 don ca 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 don ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi don ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi don ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.