Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can hoi cau snippets" » "cau hoi cau snippets", "can ho cau snippets", "dan hoi cau snippets", "can hoi chu snippets", "can hoc cau snippets", "can hoa cau 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: (((("can hoi 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: (((("can hoi cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can hoi cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can hoi cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.