Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao hoat cua snippets" » "co hoat cua snippets", "cao chat cua snippets", "dan hoat cua snippets", "cao hoa cua snippets", "cao hat cua snippets", "cao hoan cua 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: (((("cao hoat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao hoat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao hoat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao hoat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.