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