Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mua lai toan snippets" » "mua bai toan snippets", "mua lap toan snippets", "mua lai thanh snippets", "cua loai 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: (((("mua lai 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: (((("mua lai toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mua lai toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mua lai toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.