Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran hoan ho snippets" » "tran hoang ho snippets", "tuan hoan ho snippets", "tran doan ho snippets", "tran hoan hao snippets", "tran toan ho snippets", "tran han ho 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 hoan ho 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 hoan ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran hoan ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran hoan ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.