Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"may khoan le snippets" » "may khoa le snippets", "cac khoan le snippets", "tai khoan le snippets", "may khoan ke snippets", "may hon le snippets", "may khoan va 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 khoan le 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 khoan le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( may khoan le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("may khoan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.