Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat chay cao snippets" » "hat chau cao snippets", "hoat chat cao snippets", "hat nhan cao snippets", "hat cay cao snippets", "hat chat cao snippets", "hat nha cao 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 chay cao 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 chay cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat chay cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat chay cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.