Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat dao cau snippets" » "hat dan cau snippets", "hat dam cau snippets", "hat do cau snippets", "hat dat cau snippets", "hat da cau snippets", "hat tao 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: (((("hat dao 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: (((("hat dao cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat dao cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat dao cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.