Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khuc hat cu snippets" » "khac hau cu snippets", "thuc ha cu snippets", "khuc hat cua snippets", "khuc bat cu snippets", "khuc hat ca 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: (((("khuc hat cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khuc hat cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khuc hat cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khuc hat cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.