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