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