Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"may lap toan snippets" » "may tap toan snippets", "may lap doanh snippets", "may phap toan snippets", "xay lap toan snippets", "may dap toan snippets", "may lam toan 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: (((("may lap toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("may lap toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( may lap toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("may lap toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.