Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam quan cua snippets" » "lam quang cua snippets", "la quan cua snippets", "lac quan cua snippets", "lam quan luan snippets", "lam ban cua snippets", "lam gian 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: (((("lam quan 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: (((("lam quan cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam quan cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam quan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.