Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dun tao cau snippets" » "dun tao code snippets", "duc tao cau snippets", "dung tai cau snippets", "dung bao cau snippets", "dun tao cu snippets", "dun tao cao snippets", "dun tao sau 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: (((("dun tao cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dun tao cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dun tao cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dun tao cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.