Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap luat hoi snippets" » "dap luat hoi snippets", "lap luan hoi snippets", "cap luat hoi snippets", "lap luat moi snippets", "lap luat so snippets", "lap luat dai 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 luat hoi 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 luat hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap luat hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap luat hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.