Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap dat chau snippets" » "lap dat cau snippets", "lap hat chau snippets", "lap lai chau snippets", "luat dat chau 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 dat chau 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 dat chau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap dat chau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap dat chau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.