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