Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran hang ve snippets" » "tran hoang ve snippets", "tranh hang ve snippets", "tran thang ve snippets", "tran hang va snippets", "tran hanh ve snippets", "tran hang ke 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: (((("tran hang 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: (((("tran hang ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran hang ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran hang ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.