Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac cau doc snippets" » "cac mau doc snippets", "bac cau doc snippets", "ca cau doc snippets", "cac chau doc snippets", "cac cau do snippets", "cac cau doi 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 cau doc 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 cau doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac cau doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac cau doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.