Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap quan cau snippets" » "tap quan cau snippets", "la quan cau snippets", "lap luan cau snippets", "lap quang cao snippets", "lap toan cau snippets", "lap quan ha 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: (((("lap quan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lap quan cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap quan cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap quan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.