Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap hai cach snippets" » "lap cai cach snippets", "lap hao cach snippets", "lap nhan cach snippets", "lap tai cach snippets", "lap lai cach snippets", "lap hoat cach 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 hai cach 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 hai cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap hai cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap hai cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.