Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chan doan du snippets" » "chan doan code snippets", "chan doan dau snippets", "chan toan du snippets", "chan doan do snippets", "phan doan du snippets", "can doan du snippets", "nhan doan 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: (((("chan doan 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: (((("chan doan du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chan doan du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chan doan du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.