Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau phat cua snippets" » "dao phat cua snippets", "dai phat cua snippets", "dang phat cua snippets", "dau nhat cua snippets", "dau chat cua snippets", "dau hai 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: (((("dau phat 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: (((("dau phat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau phat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau phat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.