Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mau so toan snippets" » "mau so tan snippets", "mau so than snippets", "mau bao toan snippets", "ma so toan snippets", "mau co toan snippets", "mau do 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: (((("python using java snippets") or ("mau so toan snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("mau so toan snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( mau so toan snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("mau so toan snippets"))) or ("locating bug code snippets"))*.