Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao do canh snippets" » "cao doi canh snippets", "cao do sanh snippets", "cao do danh snippets", "cao dao canh snippets", "cau do canh snippets", "cap do canh 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: (((("cao do canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao do canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao do canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao do canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.