Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac phong da snippets" » "cac phuong da snippets", "cac chuong da snippets", "chau phong da snippets", "cac phong va snippets", "cac phong xa snippets", "cac phong la 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: (((("cac phong da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac phong da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac phong da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac phong da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.