Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao bach cau snippets" » "cao sach cau snippets", "cao khach cau snippets", "cao thach cau snippets", "cao bac cau snippets", "cao bach mai snippets", "cao sach cap 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 bach cau 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 bach cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao bach cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao bach cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.