Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan du mo snippets" » "tran duc mo snippets", "toan cau mo snippets", "toan dau mo snippets", "toan duc mo snippets", "toan de mo 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: (((("toan du mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan du mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan du mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan du mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.