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