Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong sau mo snippets" » "duong san mo snippets", "duong sat mo snippets", "duong sach mo snippets", "duong dau mo snippets", "duong su 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: (((("duong sau 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: (((("duong sau mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong sau mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong sau mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.