Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao tinh co snippets" » "cao minh co snippets", "cac tinh co snippets", "ca tinh co snippets", "cao trinh co snippets", "cao tinh cao snippets", "cao tinh cho 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 tinh co 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 tinh co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao tinh co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao tinh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.