Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cai tien cua snippets" » "cai thien cua snippets", "cau tieng cua snippets", "chi tiet cua snippets", "cai trien cua snippets", "cai tiep cua snippets", "cai khien cua 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: (((("cai tien cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cai tien cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cai tien cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cai tien cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.