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