Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung ket chi snippets" » "dung ket code snippets", "dong ket chi snippets", "dung kem chi snippets", "dung viet chi snippets", "dung ke chi snippets", "dung keo chi snippets", "dung kien chi 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: (((("dung ket chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ket chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung ket chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ket chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.