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