Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran tu du snippets" » "tran tu code snippets", "tran tuan du snippets", "tran thuy du snippets", "tran thi du snippets", "tran tu duy snippets", "tran tu dau snippets", "tran tru du snippets"
"python using java snippets" » "python using data 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 tu du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran tu du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tran tu du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran tu du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.