Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap toan do snippets" » "tap toan do snippets", "lap doanh do snippets", "phap toan do snippets", "lap toan ho snippets", "lap toan co snippets", "lap toan du 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 toan do 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 toan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap toan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap toan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.