Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trao cho can snippets" » "tao cho can snippets", "tra cho can snippets", "trao ho can snippets", "trao cho cac snippets", "trao cho phan snippets", "trao cho cong 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 cho can 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 cho can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trao cho can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trao cho can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.