Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hac hang ca snippets" » "hoc hang ca snippets", "khach hang ca snippets", "khac hoang ca snippets", "hac hang va snippets", "hac nang cao snippets", "hac hang tai 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: (((("hac hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hac hang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hac hang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hac hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.