Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua phi doan snippets" » "cua thi doan snippets", "cua thai doan snippets", "cua phi san snippets", "cua chi doan snippets", "cua phu doan snippets", "chau phi doan 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: (((("cua phi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua phi doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua phi doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua phi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.