Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoan tran ve snippets" » "hoang tran ve snippets", "thoan tran ve snippets", "toan tran ve snippets", "hoan tran vu snippets", "hoan toan ve snippets", "hoan tran v 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: (((("hoan tran ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoan tran ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoan tran ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoan tran ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.