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