Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao doanh le snippets" » "cho doanh le snippets", "cac doanh le snippets", "cao danh le snippets", "cao doanh ly snippets", "cao oanh le snippets", "cao doanh ket 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 doanh le 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 doanh le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao doanh le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao doanh le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.