Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trao di cau snippets" » "trao doi cau snippets", "trac dia cau snippets", "trao dam cau snippets", "trao da cau snippets", "trao diem cau 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: (((("trao di cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trao di cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trao di cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trao di cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.